safari web developer

Safari User Guide

• Get started
• Go to a website
• Bookmark webpages to revisit
• See your favorite websites
• Use tabs for webpages
• Import bookmarks and passwords
• Pay with Apple Pay
• Autofill credit card info
• View links from friends
• Keep a Reading List
• Hide ads when reading
• Translate a webpage
• Download items from the web
• Add passes to Wallet
• Save part or all of a webpage
• Print or create a PDF of a webpage
• Interact with text in a picture
• Change your homepage
• Customize a start page
• Create a profile
• Block pop-ups
• Make Safari your default web browser
• Hide your email address
• Manage cookies
• Clear your browsing history
• Browse privately
• Prevent cross-site tracking
• See who tried to track you
• Change Safari settings
• Keyboard and other shortcuts

Use the developer tools in the Develop menu in Safari on Mac

If you’re a web developer, the Safari Develop menu provides tools you can use to make sure your website works well with all standards-based web browsers.

If you don’t see the Develop menu in the menu bar , choose Safari > Settings, click Advanced, then select “Show features for web developers.”

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How-To Geek

How to turn on the develop menu in safari on mac.

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When you right-click on any web page in Safari on Mac, it doesn't reveal the Show Page Source and Inspect Element buttons. To see these, you need to enable the Develop menu---we'll show you how to do that.

Once you've enabled the Develop menu, right-clicking a blank space on any website will reveal the Inspect Element and Show Page Source buttons. These allow you to take a look at the source code of any website, which is useful for things like downloading images from websites and debugging code or finding out what it looks like behind any site (for website designers).

You can easily turn on the Develop menu in Safari by following a couple of steps. Open Safari on your Mac and click the "Safari" button in the menu bar.

Next, select "Preferences." Alternatively, you can use the keyboard shortcut Command+, (comma). This will also open up Safari preferences.

Go to the "Advanced" tab.

Check the box for "Show Develop Menu in Menu Bar."

Now the Develop menu will appear between Bookmarks and Window at the top.

Apart from being able to view the page source, this will allow you to access developer-focused features, such as disabling JavaScript on any website.

Once you've enabled the Develop menu, there are a couple of ways to view the page source in Safari.

Open any website in Safari and right-click the blank space on the page. Now, select "Show Page Source." You can also get to this menu by using the keyboard shortcut Option+Command+u.

If you're looking for images or other media elements from any web page, Safari makes it easy to find these. In the left-hand pane, you will see various folders such as Images, Fonts, etc. Click the "Images" folder to quickly find the photos that you need.

After selecting an image, you can view its details easily by opening up the details sidebar. The button to open this is located at the top-right of the console, just below the gear icon. You can also open this with the shortcut Option+Command+0.

Click "Resource" at the top of the details sidebar to view details, such as the size of the image and its full URL.

You can change the position of the page source console easily, too. There are two buttons at the top-left of this console, right next to the X button. Click the rectangle icon to move the console to a different side within the browser window.

If you'd like to open the page source console in a separate window, you can click the two-rectangles icon. This will detach the console and open it in a separate window.

To check out the code for any specific element on the page, you can right-click that element and select "Inspect Element." This will take you directly to the code for the element that you selected.

Whenever you're done looking at the code, click the X button to close the page source console and return to browsing on Safari. You can also check out how to view a website's page source in Google Chrome  here.

Related: How to View the HTML Source in Google Chrome

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Safari Browser Tips for Developers

Tips and techniques for developers using Safari browser, including enabling developer tools, inspecting and modifying code, debugging, performance optimization, responsive design, and more.

If you're developing for Apple devices, mastering Safari's developer tools is essential. Here 's a quick guide to get you started:

• Enable Developer Tools in Safari by accessing Preferences > Advanced and checking 'Show Develop menu in menu bar'.
• Web Inspector helps you inspect and modify HTML, CSS, and JavaScript in real-time.
• Responsive Design Mode allows you to test your site on various device sizes.
• Debugging Tools like the Console and Network panels aid in identifying and solving coding issues.
• Performance Optimization techniques help you speed up your website.
• Accessibility and Security features ensure your site is usable and safe for all users.
• Safari-specific tips include detecting the browser, optimizing media encoding, and implementing responsive design .
• Advanced Debugging Techniques offer deeper insights into your code's behavior.

This guide aims to improve your efficiency and effectiveness when developing web applications or sites for Safari, ensuring a smooth and optimized user experience across all Apple devices.

Navigating the Developer Tools Interface

Safari's developer tools interface provides comprehensive inspection and debugging capabilities through several key panels:

Elements Panel

The Elements panel allows you to inspect and modify the DOM tree and CSS styles associated with the loaded webpage. You can:

• View and edit HTML elements and attributes
• Modify CSS styles directly in the panel
• Visualize box models, positioning, and other layout details
• Identify accessibility issues

The Elements panel is extremely useful for tweaking designs and layouts, fixing styling issues, and understanding DOM structure.

Network Panel

The Network panel logs all network requests made by the page and provides insights into loading performance. You can:

• View all assets loaded by the page like scripts, stylesheets, images
• Check request and response headers
• Identify slow network requests impacting page load speed
• See a breakdown of total download size and time

This is helpful to optimize page load times and identify network bottlenecks.

Sources Panel

This panel allows debugging and modification of JavaScript code. You can:

• Pause code execution to step through your script
• Set breakpoints and inspect variable values
• Edit JavaScript code on the fly
• Profile memory usage and CPU activity

The Sources panel is great for identifying and fixing JavaScript bugs and performance issues.

Timelines Panel

The Timelines panel visualizes various events tied to loading and running a webpage over time, including:

• Resource loading
• Style calculations
• Layout changes
• Script activity
• Rendering frames

Analyzing these timelines is crucial to pinpoint expensive operations that may cause jank or lag when interacting with your site.

Console Panel

The Console panel logs output from JavaScript code running on the page, any runtime errors, logging statements, network request statuses, and more. This can help identify and debug a wide variety of front-end issues.

Storage Panel

This panel allows inspection and modification of all browser storage mechanisms utilized by the page like cookies, local storage, session storage, and more. It is invaluable for understanding and debugging client-side data persistence.

Overall, Safari's developer tools provide unparalleled inspection and debugging capabilities for webpages. Mastering these tools is essential for any web developer looking to build high-quality experiences.

Inspecting and Modifying HTML and CSS

Selecting elements.

To pick an element to work on in the Elements panel:

• Just click on the part of the webpage you're interested in. This makes it pop up in the Elements panel.
• Or, click on the element's name in the DOM tree in the Elements panel.

Other ways to find elements include:

• Use the search box to look for elements by their ID, class name, or tag name.
• Right-click on an element and choose "Select Element in Console" to use it in Console commands.

When you choose an element, you'll see all its details like HTML, CSS, and layout info on the right side.

Editing HTML

To change the HTML of something you've selected:

• Double-click on its tag or text in the Elements panel.
• Or right-click and pick "Edit as HTML".

Now, you can edit the HTML. Press Enter when you're done to save your changes.

Some quick tips:

• Switch tag names to change the structure.
• Change attributes like id or class .
• Add, tweak, or remove child elements.

Your webpage will update right away with your changes.

Modifying CSS Styles

To change the CSS styles of something:

• Click on the element in the Elements panel or on the webpage.
• On the right, in the Styles section, find the style you want to change.
• Click in the value box, make your edit, and press Enter.

You can also:

• Hit the New Style Rule button ( + ) to add new styles.
• Toggle style properties on or off by checking/unchecking them.
• Right-click on a style to make it !important or to copy it.

Like before, your webpage shows the changes right away.

Adding and Removing Classes

You can change how an element looks and acts by adding or removing classes.

To add a class:

• Choose the element in the Elements panel.
• Look for the class attribute in the Attributes section.
• Type in the new class name. Use spaces to add more than one.

To get rid of a class, just delete its name from the class attribute.

This is a quick way to change an element's style without messing with CSS rules directly.

Utilizing the Web Inspector for Debugging

The Web Inspector is a super handy tool for checking out how your page looks, fixing JavaScript problems, and figuring out what slows things down. Here's how to make the most of it:

Inspecting Page Layouts

• The Elements panel lets you peek at the structure of your webpage and see how elements are laid out.
• You can turn CSS styles on and off to immediately see how they affect your page.
• Experiment with layout by changing styles like width , height , margin , and so on.
• The Layout pane helps you spot issues with how things are arranged on your page.

Debugging JavaScript

• Use the Sources panel to pause your code where you want and go through it step by step.
• Check out variables, events, and what the code is doing at each step on the side.
• Change code on the fly, run small tests, and look at values in the Console .
• Find out where your code is slow or using too much memory.

Analyzing Network Performance

• The Network panel shows you everything your page is loading.
• Find out which parts take the longest to load.
• Look at the details of what's being sent and received.
• Pretend you're on a slower connection to see how your page does.

Diagnosing Rendering Issues

• Use the Timelines panel to see everything that happens when your page loads and runs.
• Look for parts of your page that make it slow or choppy.
• Record what happens when people use your page to find spots you can make better.

Getting good at using Safari's Web Inspector means you can make your websites work better and faster. It's all about spotting problems and fixing them.

Responsive Design Mode

Responsive Design Mode is a feature in Safari that lets you see how your website looks on different devices like phones, tablets, and computers. It's great for making sure your site works well no matter what screen size someone is using. Here's a simple guide to using it:

Enabling Responsive Design Mode

To start using Responsive Design Mode in Safari:

• Go to the Develop menu at the top.
• Choose Responsive Design Mode from the list.

A toolbar will show up with different screen sizes you can test.

Selecting Screen Sizes

In Responsive Design Mode, you can pick from preset screen sizes for devices like:

• Or even specific sizes like 1440px wide

Just click on one to see how your site looks. You can also manually adjust the size by dragging the corner of the window, switch to landscape mode, or simulate using a touchscreen.

Testing Responsiveness

As you change the size of the Safari window:

• Move around your site to see if it adjusts smoothly.
• Check that things like text and images move or resize correctly.
• Make sure links and buttons work as expected.

This helps you spot any parts of your site that might not look right on different screens, like if text gets too squished or a picture disappears.

Integration with Web Inspector

You can use Responsive Design Mode together with Safari's Web Inspector. This means you can:

• Look closely at the code of your site and change it on the fly.
• Solve problems with your site's JavaScript.
• Check how fast your site loads and find ways to make it faster.

Using these tools together can help you make sure your site not only looks good on all devices but also works well and loads quickly.

By getting good at using Responsive Design Mode, you can make websites that everyone can enjoy, no matter what device they're using. It's a good idea to test your site often as you build it to catch any issues early.

Advanced Debugging Techniques

Debugging web apps can sometimes feel like a puzzle, but Safari's got some cool tools to help you out. Here are some tips to step up your debugging game with the Web Inspector:

Using the Debugger Statement

You can make your JavaScript take a break by adding debugger; in your code. When Safari sees this, it'll pause right there, letting you take a closer look.

How to do it:

• Jump into the Sources panel
• Drop debugger; into the line where you want things to pause
• Refresh the page
• Your code will stop at that line, ready for you to dive in

This is super handy for checking out what's happening at certain moments.

Viewing Console Logs

The Console panel is where you'll see messages from console.log() , along with any errors or warnings.

• Use console.log() to spit out what values variables are holding or to track where you are in your code.
• You can sift through messages by type, like error or warn , to zero in on problems.
• Logging objects? You can peek inside them with console.log(someObject);

Filtering Network Traffic

In the Network panel, you can narrow down requests by:

• Type (like XHR, JS, CSS)
• Where they're from (domain)
• How big they are
• How long they take

This is great for digging into specific stuff, like if you're only interested in checking out API calls.

Analyzing Detailed Timelines

The Timelines panel lays out everything that happens as your page loads and runs, all on a neat timeline.

What you can do:

• Zoom in to get a closer look at certain actions
• Filter by types of events
• Look up specific elements or actions
• Check out the details of what's causing delays

This helps you find and fix spots that slow your app down.

• Pause your code with debugger; to take a closer look at specific spots
• Use console.log() to keep tabs on what your code is doing
• Filter network stuff to focus on what matters to you
• Use the timelines to spot and smooth out any slow parts

Getting the hang of these tricks will help you make smoother, faster web apps.

Safari-specific Development Tips

Detecting safari browser.

You can find out if someone is using Safari and what version it is with this bit of code:

Then, you can make your website work differently depending on the Safari version:

This way, your website can work well for everyone, no matter what version of Safari they're using.

Supporting Multiple WebKit Versions

Since Safari uses the WebKit engine, you can check if certain WebKit features are available:

And use -webkit- in your CSS for things to look right in both old and new versions of WebKit:

Checking the WebKit Feature Status helps you know what's supported.

Optimizing Media Encoding

For videos, use MP4 format with H.264 encoding. For audio, MP3 works well across browsers. Use <video> and <audio> tags for media on your website. For drawings or animations, <canvas> works great in Safari. Using these formats makes sure your website loads fast and looks good in Safari.

Implementing Responsive Design

Use flexible layouts, images that resize, and media queries for a website that looks good on any device:

Always check how your site looks on different devices like iPhones, iPads, and desktops to make sure everything adjusts and fits well.

Adding Multi-Touch Support

Make your website interactive for touch devices by listening to touch events:

You can detect different gestures like taps, swipes, or pinches and use them to make things move or change on your site. This makes your website more fun and easier to use on phones and tablets.

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Simulating devices and screen sizes.

Safari lets you check how your website looks on different devices and screen sizes right from your computer. This is super helpful for making sure your site looks good whether someone is viewing it on a phone, tablet, or computer.

To get started:

• Click on Develop > Responsive Design Mode in the Safari menu.
• You'll see a toolbar with different device and screen size options.

Selecting Emulation Options

In Responsive Design Mode, you can:

• Pick from devices like iPhone, iPad, Apple Watch
• Choose screen sizes like 1440x900 or 1280x720
• Try out portrait/landscape views
• Test how touch input works

Just click on a device or screen size to see how your page changes.

Customizing Sizing

You can also manually adjust the size of the page by dragging the window's edges, or you can type in specific sizes:

And you can switch between landscape and portrait modes:

As you change sizes, make sure that:

• Your page adjusts smoothly for different screen sizes
• Pictures and videos fit well and don't stick out
• Text is easy to read and everything is easy to use

Scrolling around helps you check that everything moves right.

Integration with Developer Tools

You can use Responsive Design Mode with other tools in Safari like the Web Inspector. This lets you do a lot at once, like:

• Look at and change your site's code
• Figure out JavaScript issues
• Check how fast your site is
• Find and fix display problems

This makes it easier to get your site looking and working great on all devices.

Achieving Consistency

Test your site on different screens as you build it to make sure it always works and looks right.

• Start emulation with Develop > Responsive Design
• Use the preset options for devices and screen sizes
• Adjust the page size yourself if needed
• Test your site with other Safari tools for a complete check-up
• Keep testing on different screens to make sure your site stays responsive

Following these steps will help make sure your site offers a good experience for everyone, no matter what device they're using.

Debugging Safari Web Apps on macOS

When you're working on a web app for Safari on a Mac, you'll need to know how to find and fix problems. Here's a simple guide to get you started with Safari's built-in tools for developers.

Enabling Web Inspector

First things first, you need to turn on a tool called Web Inspector:

• Go to Safari's preferences and click on the Advanced tab
• Make sure the box next to "Show Develop menu in menu bar" is checked
• You'll see a new "Develop" menu appear at the top of Safari
• From there, select "Show Web Inspector"

You can also press Option + Command + I on your keyboard to open it up quickly.

Inspecting the Web App

With Web Inspector open, you can:

Use the Elements panel to look at the website's building blocks (HTML) and how it's styled (CSS). This is great for checking the layout, seeing what styles are applied, and making sure it's accessible.

The Console panel shows you errors or any messages from your JavaScript. This helps you spot problems fast.

The Sources panel lets you dive into your JavaScript code. You can pause it, see what's happening step by step, and check out the values of different things while it runs.

The Network panel keeps track of all the files your app is loading. It's useful for finding out if anything is taking too long to load.

Check out the Timelines and Profiles panels to see if there are any slow parts in your app causing delays or making things choppy.

Testing on Different Devices

You can see how your app looks on different devices using a feature called Responsive Design Mode. Just go to the Develop menu and turn it on. This lets you check if your app looks good on phones, tablets, and computers without having to test it on each device.

Modifying Code

With Web Inspector, you can change your app's HTML, CSS, and JavaScript right there and then. This means you can try out new ideas quickly:

• Change the text or structure in the Elements panel
• Adjust how things look by tweaking the CSS
• Update your JavaScript in the Sources panel

Just refresh your app to see how the changes work out.

Achieving Performance

Use Web Inspector to look at how your app loads and runs. You can find out what's slowing it down and fix it by:

• Looking at network requests to see if files are too big or slow to load
• Checking JavaScript performance to find and fix slow code
• Watching for layout changes that might be causing delays

Testing your app in different situations helps make sure it runs smoothly for everyone.

Performance Optimization

Detecting unused code.

To spot CSS and JavaScript your web app doesn't really use, follow these steps in your browser's developer tools:

• Open the developer tools and find the Coverage panel.
• Refresh your page with the coverage tool running - this keeps track of which bits of code are active.
• Use your site to make sure you're checking all its features.
• Look at the Coverage panel to see how much of your code was actually needed.
• Click on files to see parts of the code that weren't used, shown in red.
• Get rid of code that you don't need to make your files smaller.

Some hints:

• Hit Start instrumenting coverage to begin.
• Try out every part of your site to catch all the code that might run.
• Pay special attention to big CSS or JavaScript files that aren't used much.

Cutting out unnecessary code helps your site run faster and smoother.

Analyzing Resource Sizes

To look into how big your site's files are using the Network panel:

• Open the developer tools and switch to the Network tab.
• Refresh the site to see all the files it loads.
• Look at the Size column for how big each file is.
• Organize by size to spot the biggest files.
• Click on a file for more details, like how much you could save by compressing it.
• Files larger than 2MB can slow down your site.

Ways to make files smaller:

• Shrink and tidy up JavaScript and CSS files.
• Use tools to make images smaller without losing quality.
• Only load big files when they're actually needed.

Making your files leaner can make your site load faster and work better.

Accessibility and Security

Making sure websites are easy to use and safe is really important, especially for people using iPhones and iPads. Here are some tips for making websites better for everyone in Safari:

Implementing Proper Accessibility

• Use special codes ( ARIA roles, states, and properties) to help browsers understand what each part of your website is supposed to do.
• Always provide descriptions for images and other non-text content.
• Make sure there's a strong contrast between text and its background so it's easy to read.
• Design your site so people can navigate through it using just a keyboard.
• Make your site work well with tools that help people with disabilities, like screen readers.

Tips for testing:

• Try using VoiceOver on iOS to check if people can listen to your website's content.
• Use the Accessibility Inspector in Safari to make sure everything's set up right.

Utilizing Safari's Security Features

• Use HTTPS to keep connections to your site secure.
• Make sure any external content on your site hasn't been messed with.
• Think about using Feature Policy for tighter control over your site's features.
• Use Credential Management API to help users log in securely.

Additional measures:

• Always clean and check any information users give you.
• Stick to the best ways of keeping user accounts safe.
• Be careful with scripts from other websites.

Checking for Common Issues

• Make sure your site meets the guidelines for accessibility.
• Look out for common security risks like XSS or CSRF.
• Test your site on both desktop and mobile versions of Safari.
• Check that your site still works when Safari's extra security settings are turned on.

Focusing on making your site easy to use and safe helps everyone have a better experience. Testing thoroughly is the best way to find and fix any problems.

Safari gives developers a lot of tools to make websites and apps work really well on Apple devices. If you know how to use these tools, you can make your site or app faster, look better, and be easier for everyone to use.

Here's a quick recap of what we talked about:

• Develop menu in Safari lets you use cool tools like Web Inspector for checking and fixing code, and Responsive Design Mode for seeing how your site looks on different devices.
• The Elements panel helps you look at and change the website's HTML and CSS, check how it's laid out, and make sure it's accessible to everyone.
• The Network panel helps you see how fast your site loads and find ways to make it load faster.
• Sources panel is for finding and fixing JavaScript bugs.
• Timelines panel shows you what happens when your page loads and helps you find parts that make it slow.
• Responsive Design Mode lets you see how your site looks on phones, tablets, and computers.
• Make sure your site can be used easily by everyone, including people with disabilities, by using ARIA roles and testing with tools like VoiceOver.
• Keep your site safe with HTTPS, clean inputs, and safe login methods.

We also shared tips on how to make sure your site works well in Safari, like checking for Safari browser, using WebKit features, making your site responsive, adding touch events, and making your site fast.

With Safari being so popular on mobile devices, it's really important to test your site on Apple's devices to make sure it works great. Use the tools we talked about to check your site and keep updating it with new features.

In short, making your site work well in Safari means happy users who'll want to keep coming back.

Related Questions

How do i use developer in safari.

To turn on developer tools in Safari, follow these steps:

• Open Safari , then go to Preferences
• Click on the Advanced tab
• Make sure to tick the box for Show Develop menu in menu bar
• Now, you'll see a new Develop menu at the top, which lets you access various developer tools

These tools include the Web Inspector for checking your website's code and layout, Responsive Design Mode for seeing how your site looks on different devices, and a console for solving JavaScript problems.

Is Safari good for Webdev?

Yes, Safari is great for web development. It has handy tools like Web Inspector, Responsive Design Mode, and Accessibility Inspector that make building, testing, and improving websites easier.

Since Safari uses WebKit, like some other browsers, testing for cross-browser compatibility is more straightforward. Plus, its popularity among Apple device users means it's crucial for reaching a broad audience. Safari offers a solid development environment for web professionals.

How do I use Safari efficiently?

Here are a few tips to get the most out of Safari:

• Look at all your open tabs with tab previews and close ones you don't need by swiping.
• Turn on Reader Mode for a cleaner reading experience on web pages.
• Bookmark your go-to sites and use the smart search feature for quick access.
• Use Keychain for saving and autofilling passwords securely.
• When privacy is a concern, switch to Private Browsing mode.
• Add useful shortcuts to your toolbar for quick access.

How do I make Safari work better?

To improve Safari's performance:

• Clean out your browsing history and site data now and then.
• Switch on the Develop menu for access to more tools that can help optimize your browsing.
• Stop videos from playing automatically to save on resources.
• Use Reader Mode on complex pages to cut down on data use.
• Make sure privacy settings are on.
• If content blockers are messing with a site, try turning them off temporarily.
• Keep Safari and your operating system up to date for the latest speed and security enhancements.

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Safari Developer Tools: The Complete Guide for Web Developers

Introduction to safari developer tools.

Safari is one of the major web browsers along with Chrome, Firefox, and Edge. As an Apple product, it comes pre-installed on Macs and iOS devices. Over the years, Safari has evolved to include robust developer tools accessible from the Develop menu. These built-in tools provide web developers with capabilities for debugging JavaScript, inspecting CSS, monitoring network requests, analyzing performance, auditing accessibility, and more.

Safari's developer tools are especially useful for testing and debugging web apps specifically within the Safari browser on macOS and iOS. They allow you to inspect cross-browser compatibility issues that may arise during development.

In this comprehensive guide, we'll explore the key features of Safari's developer tools and how to use them for front-end web development. Whether you are just getting started or looking to optimize your debugging workflow, you'll find tips and examples to help improve your process. Let's take a high-level look at what we'll cover:

• Using the JavaScript debugger to set breakpoints, inspect scope and objects, profile code performance, and log errors/warnings
• Inspecting and modifying CSS styles applied to page elements in real-time
• Monitoring network requests and analyzing load performance with Waterfall charts
• Throttling CPU and network to simulate mobile devices and slow connections
• Auditing for accessibility issues like color contrast, focus order, ARIA roles
• Testing responsive design across multiple device sizes and orientations
• Integrating with Xcode tools for advanced Swift/Obj-C debugging
• Additional tips like saving element inspection settings, keyboard shortcuts, and more

By the end, you'll have a solid understanding of how to leverage Safari developer tools in your web projects and debug more efficiently. Let's get started!

Debugging JavaScript with Safari Developer Tools

The JavaScript debugger is one of the most powerful features of Safari dev tools. It allows you to pause code execution at any point and step through your JavaScript line-by-line.

To start debugging, open the Sources tab and set breakpoints by clicking line numbers in your scripts. As you interact with your page, execution will pause when a breakpoint is hit. You can then step over, step into, or step out of functions and examine the current state.

For example, you can use the debugger to identify exactly where a promise-based function is failing by stepping through the promise callbacks line-by-line until you encounter the error.

In the Scope pane, you can inspect variable values in the current closure or parent scopes. The Call Stack shows the sequence of function calls. Object properties can be expanded in the Scope pane for detailed analysis.

The JavaScript debugger is especially useful for debugging asynchronous code like promises, timers, and events. Set breakpoints within callbacks to pause execution at the right moment.

The Console allows you to log messages like values, errors, warnings, and custom output. Use console.log() strategically throughout your code to understand control flow. The Console also displays runtime errors and exceptions to identify bugs.

For performance profiling, the Timelines tab provides JavaScript profiling. It visualizes script activity over time to identify slow functions. This helps pinpoint optimization opportunities.

Inspecting and Editing CSS

Safari dev tools make CSS debugging painless. The Elements tab lists all styles applied to the selected element, including information like specificity and inheritance.

The Styles pane displays media query breakpoints allowing you to view the cascade and specificity at different viewport sizes. This helps debug responsive layout issues.

You can edit CSS rules live in the Styles pane and instantly see the changes reflected on the page without having to save and refresh. This rapid feedback loop allows quick iteration on styling issues.

The magnifying glass tool lets you visually inspect padding, margins, and other box model properties overlaid on the page. This helps debug complex layouts and positioning issues.

To test state changes, you can force elements into states like :hover , :focus , and :active from the Styles pane. This allows you to debug styles applied on interaction without needing to actually interact with the element.

The Coverage tab identifies unused CSS rules that can safely be removed to optimize page load size. It also shows which rules have the greatest impact on render performance.

Debugging Network Requests and Performance

Safari developer tools provide rich insights into network requests, page load performance, and optimization opportunities.

The Network tab logs all requests sent by the page along with details like HTTP headers, response bodies, times, and more. Requests are color coded by type and can be searched and filtered.

Waterfall charts visualize resource loading over time, making it easy to spot assets that delay page render. Performance metrics like First Meaningful Paint help quantify user experience.

To simulate slow network connections, you can throttle CPU or bandwidth. This allows you to debug on 3G, or even EDGE mobile connections right from your desktop.

Auditing for Accessibility

The Audit tab in Safari dev tools scans your page for common accessibility issues and standards compliance.

It checks for insufficient color contrast, missing ARIA roles and attributes, invalid HTML, and more. Each issue links to detailed references to help fix it.

You can also manually inspect if elements have logical focus order, are navigable via keyboard, and meet other requirements. The Accessibility Tree view outlines the semantic structure.

Safari's built-in Reader mode provides a quick way to experience your site through a screen reader. It strips away formatting and extra elements, allowing you to focus on content structure.

Running regular audits during development prevents major accessibility regressions down the road and ensures your site meets guidelines like WCAG 2.1 AA.

Simulating Mobile Devices with Responsive Design Mode

Responsive web design requires continuously testing across viewport sizes. Safari dev tools make this easy with Responsive Design Mode.

You can select preset device dimensions like iPhone, iPad, and desktop or enter custom sizes. Safari will resize to match those dimensions so you can view your responsive layouts.

For mobile testing, you can simulate touch events like pinch/zoom and swipe scrolling. This reveals any issues with touch targets or scroll performance.

Responsive Design Mode also allows flipping between portrait and landscape orientations. Test how your UI adapts to both modes during mobile use cases.

To access experimental features, enable the Safari Technology Preview for additional device simulation capabilities like user agent spoofing. This allows you to test in even more specific mobile scenarios.

Matching real device sizes while building responsive features ensures they'll work correctly across the vast device ecosystem. No more guessing at breakpoints!

Additional Tips and Tricks

Safari developer tools contain many handy power user features beyond the basics. Here are some tips to level up your skills:

• You can save and reapply custom element selection settings like force states, orientation, and device frames.
• Changes made in the Console and Sources tabs persist on reload so you can iteratively debug.
• The dev tools window can be docked to the bottom of the Safari window for more vertical space.
• Open multiple instances of dev tools to compare different pages side-by-side.
• Learn keyboard shortcuts for common debugging actions like pause, step over, log, etc.
• Enable the experimental features tab for tools like WebGL profiler, layer borders, and more.

Debugging Safari Extensions

If you build Safari extensions, enable extension debugging in Preferences > Advanced to load them unpacked.

This allows inspecting extension files, storage, dev tools console, and inter-process communication. You can debug injected scripts, content scripts, cross-origin messages, and more.

Integration with Xcode Developer Tools

For native iOS apps with web views, Safari dev tools integrate tightly with Xcode.

You can connect them to share cookies, caches, and other state. Set Xcode breakpoints in Swift or Obj-C that pause JavaScript execution in Safari tools.

The Xcode CPU profiler helps find JavaScript bottlenecks. Memory debugging, Energy Impact, and other Xcode tools provide additional low-level details when debugging Safari web views in iOS simulators and on physical devices.

Conclusion and Key Takeaways

Safari developer tools provide a robust feature set optimized for front-end web development. Their tight integration and ease of use can boost productivity.

Key strengths include the precise JavaScript debugger, real-time CSS manipulation, detailed network and performance analysis, thorough accessibility auditing, and accurate mobile simulation.

Web developers should consider integrating Safari dev tools into their broader workflows, especially for projects targeting Apple devices. They excel at responsive design testing and debugging native iOS web views.

While Safari dev tools may not be as fully-featured as competitors, their focus on web fundamentals like JavaScript, CSS, performance, and accessibility makes them very capable for many use cases.

With the tips, guides, and examples covered in this post, you should feel empowered to debug websites efficiently using Safari's built-in developer tools. They can help track down bugs faster, optimize performance, and build high-quality responsive experiences.

If you build developer tools for iOS or macOS, be sure to test them thoroughly with Safari developer tools during the launch process. The comprehensive debugging capabilities can help identify and resolve issues specific to Apple devices and browser engines. Consider submitting your app to DevHunt to get discovered by the developer community.

Related posts

• Master Chrome DevTools for Next-Level Web Development
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How To Open Developer Tools In Safari

• Software & Applications
• Browsers & Extensions

Introduction

When it comes to web browsing, Safari stands out as a popular choice for Mac and iOS users. Whether you're a web developer, a tech enthusiast, or simply someone curious about the inner workings of the websites you visit, Safari's Developer Tools can provide valuable insights and functionalities. These tools empower users to inspect, debug, and optimize web content, making them indispensable for anyone involved in web development or simply interested in understanding the technical aspects of the internet.

In this article, we'll delve into the process of opening Developer Tools in Safari on both Mac and iOS devices. By the end, you'll have a comprehensive understanding of how to access these powerful tools, enabling you to explore the underlying structure of web pages, analyze network activity, and experiment with various web development features.

Let's embark on this journey to uncover the hidden capabilities of Safari's Developer Tools, empowering you to gain a deeper understanding of the web and its intricate design. Whether you're a seasoned developer or a curious individual eager to peek behind the digital curtain, the following sections will equip you with the knowledge to harness the full potential of Safari's Developer Tools.

Opening Developer Tools in Safari on Mac

Opening Developer Tools in Safari on a Mac is a straightforward process that provides access to a wealth of powerful features for web development and debugging. Whether you're a seasoned developer or a curious individual eager to explore the inner workings of websites, Safari's Developer Tools offer a comprehensive suite of functionalities to aid in understanding and optimizing web content.

To initiate the process of opening Developer Tools in Safari on a Mac, you can follow these simple steps:

Using the Menu Bar:

• Launch Safari on your Mac and navigate to the menu bar located at the top of the screen.
• Click on "Safari" in the menu bar to reveal a dropdown menu.
• From the dropdown menu, select "Preferences" to access Safari's settings.

Accessing the Advanced Settings:

• Within the Preferences window, click on the "Advanced" tab located at the far right.
• Check the box next to "Show Develop menu in menu bar" to enable the Develop menu within Safari.

Opening Developer Tools:

• Once the Develop menu is enabled, navigate back to the menu bar at the top of the screen.
• Click on "Develop" to reveal a dropdown menu containing various web development tools and options.
• From the dropdown menu, select "Show Web Inspector" to open the Developer Tools panel.

Upon completing these steps, the Developer Tools panel will appear, providing access to a wide array of functionalities such as inspecting elements, analyzing network activity, debugging JavaScript, and much more. This powerful suite of tools empowers users to delve into the underlying structure of web pages, identify and rectify issues, and optimize the performance of web content.

By familiarizing yourself with the process of opening Developer Tools in Safari on a Mac, you gain the ability to harness the full potential of these tools, enabling you to explore, analyze, and enhance the web browsing experience. Whether you're a web developer seeking to fine-tune a website's performance or simply intrigued by the technical aspects of the internet, Safari's Developer Tools on Mac provide a gateway to a deeper understanding of web development and design.

Opening Developer Tools in Safari on iPhone or iPad

Accessing Developer Tools in Safari on an iPhone or iPad allows users to gain valuable insights into the technical aspects of web content and perform various web development tasks directly from their mobile devices. Whether you're a web developer on the go or simply curious about the inner workings of websites, Safari's Developer Tools provide a convenient way to inspect, debug, and optimize web content on iOS devices.

To initiate the process of opening Developer Tools in Safari on an iPhone or iPad, follow these simple steps:

Launching Safari: Begin by unlocking your iPhone or iPad and locating the Safari icon on the home screen. Tap the Safari icon to open the Safari browser .

Enabling Developer Tools: With Safari open, navigate to the website or web page you wish to inspect and debug. Once on the desired web page, tap the address bar at the top of the screen to reveal the URL and other options.

Accessing Developer Tools: In the address bar, enter "inspect://" followed by the URL of the web page you are currently viewing. For example, if you are on the website "example.com," you would enter "inspect://example.com" in the address bar and tap "Go" or the "Enter" key on the on-screen keyboard .

Upon completing these steps, Safari's Developer Tools will be activated, providing access to a range of functionalities such as inspecting elements, analyzing network activity, debugging JavaScript, and more. This powerful suite of tools empowers users to delve into the underlying structure of web pages, identify and rectify issues, and optimize the performance of web content directly from their iPhone or iPad.

By familiarizing yourself with the process of opening Developer Tools in Safari on an iPhone or iPad, you gain the ability to harness the full potential of these tools, enabling you to explore, analyze, and enhance the web browsing experience while on the go. Whether you're a web developer seeking to troubleshoot a website's functionality or simply intrigued by the technical aspects of the internet, Safari's Developer Tools on iOS devices provide a convenient gateway to a deeper understanding of web development and design.

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How to show Safari’s Develop menu and Web Inspector

( 7 Articles )

April 25, 2022

If you’re a web developer, then there might be cases where you want to debug and improve your website (or web app) on Safari (which takes approximately 19% of browser market share worldwide).

The steps below show you how to show Safari’s Develop menu and its web inspector tool.

1. Click on Safari on the top menu bar, then select Preferences…

2. Select the Advanced tab then check the checkbox labeled with “Show Develop menu in menu bar”:

3. Now the Develop menu appears. Open a website, click on Develop , and select Show Web Inspector (or Connect Web Inspector ) from the drop-down menu:

You can also use shortcuts: Command + Option + I .

Here’re Safari Dev Tools for web developers:

That’s it. Further reading:

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Shortcuts for Safari Developer Tools

Safari Developer Tools are a big help for people who make websites. They provide features to check, fix, and improve web pages. Shortcuts are one of the best tools. They help you quickly and easily move through web development, making things faster.

Types of Shortcuts:

Table of Content

Navigation Shortcuts

Console shortcuts, debugger shortcuts, miscellaneous shortcuts, features of shortcuts.

• Inspect Element Shortcuts: Use quick keys to go fast through the DOM (Document Object Model) and check out how web parts are put together. Then, look closely at their structure for extra understanding of what’s going on in websites.
• Console Shortcuts: Use shortcuts to run JavaScript commands quickly, letting developers fix problems and test stuff using the console.
• Network Panel Shortcuts: Make checking network activities easier by using shortcuts to go through requests, answers and speed details.
• Source Code Shortcuts: Make fixing computer program errors easier by using quick ways to move through coding, put breakpoints and check what works.

Benefits of Shortcuts

• Time Efficiency: Shortcuts save time on boss tasks. They let builders do things fast and concentrate more important parts of building stuff.
• Enhanced Productivity: Developers can do more in less time. This makes them work faster and the development process smoother.
• Effortless Navigation: Shortcuts help you move easily between different parts of Developer Tools. This makes it feel smooth and easy to use.

How/When to use these Shortcuts?

• During Development: Add shortcuts to your daily tasks. This will assist you in tasks such as checking parts, solving coding issues and observing network actions quicker.
• Debugging Sessions: Shortcuts are really useful for fixing problems in code. They help programmers fast look at the code, slow it down in some spots and see things on a window called output for console.
• Performance Optimization: Shortcuts are your friends when trying to make a website work well. Use their power in the Network Panel to show performance dragons and make sure your users have a smooth experience.

Steps to Use/Implement

• Accessing Developer Tools: Enter the work area for making websites by right-clicking on your webpage, choosing “Inspect Element,” and going into the “Develop” list. You can also open the dev tools in safari by simply pressing option+command+c.
• Navigating Panels: Shortcuts are your special spells to move between different panels like Elements, Console, Network and Sources. Move smoothly through these areas like a skilled keyboard player.
• Inspecting Elements: Go to the core of your internet page using quick keys. Shine light on darkness with some easy button presses, looking carefully at different parts of the HTML like digital sleuth.
• Executing JavaScript: Use the Console Panel, your secret door to the world of JavaScript. Shortcuts let you cast spells (do commands) easily. They turn your computer screen into a magic potion of great code wonders.
• Monitoring Network Activity: In the Network Panel, shortcuts help you move through digital traffic. Follow requests, look at answers and make your computer run better with just a press of the keyboard.

Real Life Application

Picture a developer trying to solve the puzzle of an annoying layout problem on a website. Our programmer turns into a digital Sherlock with the help of shortcuts. Shortcuts help check parts of the webpage, move through it and change looks quickly. This helps solve problems. Pictures or small moving pictures show how shortcuts are used step-by-step. This is very helpful in figuring things out practically.

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How to Set Up a Mac for Web Development

Setting up a Mac to do web development can seem daunting, but it doesn‘t have to be. With just a few key tools installed, you‘ll be ready to start building websites and web apps in no time.

In this comprehensive guide, we‘ll cover everything you need to get set up for both front-end and back-end web development on a Mac.

Step 1: Update your Operating System

Before installing anything new, it‘s always a good idea to make sure your Mac‘s operating system is fully up to date.

Go to the Apple menu > System Preferences > Software Update to check for and install any available updates. This ensures you have the latest security patches and optimizations from Apple before layering on your own tools.

Step 2: Choose a Code Editor

An essential tool for any web developer is a good code editor. This is the program where you‘ll write most of your HTML, CSS, JavaScript, and server-side code.

Here are some top options to consider:

Visual Studio Code : Free and open source, with great extensions and theming support. Our top choice for most developers.

Atom : Also free and open source, by GitHub. Lots of plugins and customization options.

Sublime Text : Extremely fast and lightweight. Powerful "Go to Definition" and "Go to Symbol" features.

WebStorm : Full-featured IDE by JetBrains. Excellent for complex JavaScript applications and debugging.

For most web developers, we recommend starting with Visual Studio Code. It strikes the best balance of power, customizability, and ease of use.

Step 3: Get a Terminal Emulator

While you can access macOS‘s built-in Terminal app, most developers prefer to use an alternative terminal emulator that adds extra features.

Here are some top options:

Hyper : Extensible terminal built on open web technologies. Lots of plugins and themes available.

iTerm2 : Powerful terminal replacement with loads of preferences and customizations.

Alacritty : Fast, GPU-accelerated terminal written in Rust. Great performance.

Kitty : Innovative GPU-based terminal focused on speed and actionability.

For most needs, Hyper offers the best combination of usability and extensibility. And its web-based architecture makes it easy to customize.

Step 4: Install Homebrew Package Manager

Now we‘re ready to start installing developer tools and dependencies on your system.

The easiest way to install and manage apps on a Mac is using a package manager. For that, we recommend Homebrew .

To install Homebrew, paste the following command in your Terminal:

This automated script will get Homebrew set up on your Mac. Follow any prompts along the way.

To verify Homebrew is installed properly, run:

This will check for potential issues or missing dependencies you may need to fix before proceeding.

With Homebrew ready to go, we can now easily install lots of other tools.

Step 5: Install Git Version Control

One essential tool for web developers is a version control system to manage and track changes to source code over time. This allows tracking edit history, branching different versions of code, and collaboration.

The most popular choice by far is Git . With Git installed, you can push your code to services like GitHub or GitLab and work with other developers.

To install Git with Homebrew, run:

Then confirm it is installed successfully with:

You should see the installed Git version number printed out.

Step 6: Set Up Node.js Environment

To work with today‘s JavaScript-heavy web stack, you‘ll want Node.js installed. Node allows you to run JavaScript code on the server-side through runtime environments like Next.js and Express .

Many front-end libraries like React also rely on Node and tools like NPM during development. Installing Node will give you all of these tools.

Use Homebrew to install the latest Node.js LTS release with:

Test it is installed with:

And check the NPM version with:

Now you have Node environments ready for building modern web apps!

Step 7: Install Essential Developer Tools

Some helpful tools for general web development include:

cURL : Command line utility to transfer data using various network protocols. Allows you to easily test APIs and endpoints right from Terminal.

Tree : Displays visual tree graphs of the file system. Makes it easy to inspect directories from the command line.

OpenSSL : Toolkit for SSL/TLS protocols and encryption standards that keep data secure on the internet. Required by many development tools.

MongoDB : Popular document-based database system used in many JavaScript/Node.js web apps.

Redis : High-performance in-memory key-value data store used for caching, queueing, and app messaging.

PHP : Scripting language frequently used for server-side web development. Installing via Homebrew also installs Apache web server.

With those basics covered, you‘re ready to install packages and libraries for your specific programming stack!

Step 8: Install Browsers for Testing

An often overlooked but essential tool is having one or more web browsers installed for testing purposes.

While developing sites and apps, you‘ll need to continually test in real browsers to ensure compatibility across devices and catch rendering issues.

Google Chrome : Our first recommendation due to excellent developer tools and compatibility features.

Mozilla Firefox : Also has fantastic dev tools. Lead browser for accessibility and privacy.

Apple Safari : Default macOS browser. Important for testing native platform behavior.

Microsoft Edge : For testing sites in Chromium-based browsers and emerging web features.

Install 1-2 browsers such as Chrome and Firefox at minimum. But having all three major engines (Chromium, Gecko, WebKit) is ideal for complete testing coverage.

Step 9: Consider Docker for Containers

One modern technique for developing and deploying web apps is using Linux containers and "containerized" environments through tools like Docker .

Containers allow you to package up an app or service with all its dependencies and runtime components into a single standardized unit. This makes development and delivery much more consistent across environments.

Here is how to install Docker on a Mac with Homebrew:

And verify it is working properly:

With Docker containers at your disposal, you can achieve far more consistent app behavior across your local dev environment, production servers, and everything in between.

This only scratches the surface of what Docker offers web developers. But it‘s a valuable tool to have experience with.

Step 10: Install Programming Language Runtimes

The final piece is to install runtimes, compilers and interpreters for any programming languages you intend to use:

Ruby : Popular for developing web apps of all types, including with frameworks like Ruby on Rails. The ruby package installs the core language interpreter, usually to /usr/local/bin/ruby .

Python : General purpose scripting language great for automating tasks and building machine learning models. Comes pre-installed on macOS, so likely don‘t need to install separately.

Java SDK : Required for developing Java-based web apps and microservices. Contains JRE, compiler tools, and binaries to build apps.

.NET Core SDK : Enables building web apps and services with .NET Core frameworks. Includes runtime and compiler for C# and other .NET languages.

Check out our full guide that covers installing all of these development runtimes on a Mac.

The exact languages needed will depend on your specific projects. But having one or more installed will enable full-stack development capabilities.

Next Steps for Your Web Dev Environment

With those core tools installed, you now have an awesome web development environment set up on your Mac!

Some next steps to consider:

• Install JavaScript frameworks like React , Vue , Svelte , Angular etc. depending on your front-end stack preferences
• Set up language servers and linting for IDE/text editor integrations
• Establish a folder structure and conventions for your projects
• Consider advanced configurations: dotfiles, shell customizations, window manager utilities etc.
• Set up version control accounts such as GitHub or GitLab
• Explore Docker more for creating portable, containerized development environments

The sky is the limit when tailoring your web dev environment! Take it as far as your needs demand.

The foundation is now in place to start building high-performance websites, web apps, APIs, servers, and more. Have fun bringing your ideas to life!

Let us know if you have any other questions on optimizing your Mac setup for web development.

Dr. Alex Mitchell is a dedicated coding instructor with a deep passion for teaching and a wealth of experience in computer science education. As a university professor, Dr. Mitchell has played a pivotal role in shaping the coding skills of countless students, helping them navigate the intricate world of programming languages and software development.

Beyond the classroom, Dr. Mitchell is an active contributor to the freeCodeCamp community, where he regularly shares his expertise through tutorials, code examples, and practical insights. His teaching repertoire includes a wide range of languages and frameworks, such as Python, JavaScript, Next.js, and React, which he presents in an accessible and engaging manner.

Dr. Mitchell’s approach to teaching blends academic rigor with real-world applications, ensuring that his students not only understand the theory but also how to apply it effectively. His commitment to education and his ability to simplify complex topics have made him a respected figure in both the university and online learning communities.

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Web Development Internship 1143169

Extion infotech.

• Job Details
• Dates & Deadlines

Extion Infotech is seeking a talented and motivated Web Development intern to join our team! 

Responsibilities of the Candidate:

• Collaborate with senior developers to design and develop web applications
• Write clean, efficient, and maintainable code
• Debug and troubleshoot code issues
• Contribute to code reviews
• Stay up-to-date on the latest web development technologies
• Learn and apply best practices for web development

Requirements:

• Strong understanding of HTML, CSS, and JavaScript
• Experience with a front-end framework (e.g., React, Angular, Vue.js)
• Basic understanding of back-end development concepts
• Familiarity with Git and GitHub
• Excellent communication and collaboration skills
• Ability to work independently and as part of a team
• Passion for learning and growing

Certificate of Completion

Letter of Recommendation

Learning Allowance

Flexible Hours

Counselling Support

Eligibility:

• Freshers from any stream

Contact the organisers

• ha harsh gupta [email protected] +918445361338

Additional Information

No prior experience required

Internship Duration

Internship Type

Work Detail

Working Days 5 Days

Internship Type/Timing

Internship Type Work From Home

Internship Timing Full Time

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