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Inline and live issue analysis

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Issues in your source code (.html, .css, or .js files) are highlighted with wavy underlines. You can inspect the issue and get detailed information about what the problem is, how to fix it, and where to find more information. To inspect the issue, click the code that has the wavy underline:

An accessibility issue reported inside a piece of code showing how to fix the problem, and where to find more information

This feature requires Node.js and npm (Node Package Manager). See Step 4: Install Node.js and Node Package Manager (npm) in Installing the DevTools extension for Visual Studio Code.

This feature is on by default; the Webhint checkbox is selected in Settings. To turn this feature on or off, select Activity Bar > Microsoft Edge Tools > hover to the right of Targets > More Actions (...) > Open Settings > select or clear the Webhint checkbox:

Webhint checkbox in Settings

To see all the issues in the file, click View Problem:

A highlighted issue in the source code with a navigation bar explaining the problem and buttons to move to the next and previous issues

The Problems tab in the lower panel lists all the issues that DevTools found in the currently open files:

The Problems tab in the lower panel of Visual Studio Code, listing all the issues that are found in the project's files

Video: Advanced issues filtering in Edge DevTools and VSCode

Thumbnail image for video "Advanced issues filtering in Edge DevTools and VSCode"

Live updating of issues reporting

Issues are evaluated live while you edit your code. As you type, you get feedback about any issues that are found, and how to fix them:

A possible issue being explained on an output element

Automated Quick Fixes and issue filtering

The Microsoft Edge DevTools extension for Visual Studio Code includes a Quick Fix feature. By using Quick Fixes, you can customize the error reporting of the extension to meet the needs of the current project.

When you hover over an element that has an issue, you get a light bulb (Light bulb icon) icon indicating that there are Quick Fixes available:

An anchor element with a protocol-specific href attribute highlighted as a problem, by a wavy underline and light bulb icon above it

Clicking the light bulb icon shows a list of options. For example, if you added a link that has a protocol-relative URL, you get the following Quick Fix list to choose from:

The Quick Fix panel opened next to the anchor element with the error, offering several Quick Fix options

You can select whichever Quick Fix you want to use to resolve the issue or to stop reporting it as an issue:

  • Fix "no-protocol-relative-urls" issue - Adds the missing URL prefix https:// to the link.

  • Disable "no-protocol-relative-urls" hints in this project - Creates a .hintrc configuration file in the project folder (if one doesn't exist already), and tells the extension to not report this issue for this project.

  • Edit .hintrc for this project - Opens the .hintrc configuration file so you can edit it to customize the extension's error reporting.

See also