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目錄
Install Required Extension
Create a Launch Configuration
Start Debugging
Verify Source Maps and Paths
首頁 開發(fā)工具 VSCode 如何從 VSCode 調(diào)試 Google Chrome 中的 JavaScript?

如何從 VSCode 調(diào)試 Google Chrome 中的 JavaScript?

Oct 16, 2025 pm 12:29 PM

答案:通過安裝Debugger for Chrome擴(kuò)展並配置launch.json,可在VSCode中直接調(diào)試Chrome運(yùn)行的前端JavaScript。具體步驟包括:安裝擴(kuò)展、創(chuàng)建包含正確URL和webRoot的launch.json文件、啟動(dòng)本地服務(wù)器後按F5開始調(diào)試,並確保sourceMapPathOverrides適配項(xiàng)目結(jié)構(gòu)以支持?jǐn)帱c(diǎn)調(diào)試。

How to debug JavaScript in Google Chrome from VSCode?

To debug JavaScript in Google Chrome directly from VSCode, you can use the Debugger for Chrome extension along with proper launch configuration. This lets you set breakpoints, inspect variables, and step through code in your frontend JavaScript while running in Chrome — all controlled from within VSCode.

Install Required Extension

Open VSCode and go to the Extensions view by clicking the Extensions icon in the Activity Bar or pressing Ctrl Shift X . Search for:

  • Debugger for Chrome by Microsoft

Install it. This extension allows VSCode to communicate with a Chrome instance for debugging purposes.

Create a Launch Configuration

Set up how VSCode should launch Chrome and attach the debugger:

  1. In VSCode, open the Run and Debug view: click the Run icon in the Activity Bar or press Ctrl Shift D .
  2. Click create a launch.json file if you don't have one, then select Chrome as the environment.
  3. VSCode generates a launch.json file inside a .vscode folder in your project root.

Example launch.json configuration:

{ "version": "0.2.0", "configurations": [ { "name": "Launch Chrome against localhost", "type": "chrome", "request": "launch", "url": "http://localhost:3000", "webRoot": "${workspaceFolder}", "sourceMapPathOverrides": { "webpack:///./.*": "${webRoot}/*", "webpack:///src/*": "${webRoot}/*", "webpack:///*": "*", "webpack:///./": "${webRoot}/" } } ] }

Adjust the url to match your app's local server address (eg, http://localhost:8080 ).

Start Debugging

Make sure your web server is running (eg, npm start , vue dev server , etc.). Then:

  • In VSCode, go to the Run view.
  • Select the Launch Chrome against localhost configuration.
  • Press F5 or click the Start Debugging button.

Chrome will open a new window connected to the debugger. Set breakpoints in your JavaScript files in VSCode — they'll be hit when the code runs.

Verify Source Maps and Paths

If breakpoints aren't being hit, ensure that:

  • Your development server generates source maps (most do by default in dev mode).
  • The webRoot in launch.json points to the correct folder containing your source files.
  • You're using the right sourceMapPathOverrides if your app uses bundlers like Webpack.

For Create React App, Vue CLI, or similar tools, the example config above usually works as-is.

Basically, just install the debugger extension, configure launch.json , run your server, and hit F5. You'll be debugging client-side JavaScript from VSCode in no time.

以上是如何從 VSCode 調(diào)試 Google Chrome 中的 JavaScript?的詳細(xì)內(nèi)容。更多資訊請關(guān)注PHP中文網(wǎng)其他相關(guān)文章!

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