How to debug vscode with breakpoints

1. Open the Chrome remote debugging port

First we need to start Chrome with remote debugging turned on so that VS Code can attach to on Chrome.

Windows

Right-click the Chrome shortcut icon, select Properties in the target column, and finally add --remote-debugging-port=9222, be sure to separate them with spaces

macOS

Open the console

Execute the command/Applications/Google\ Chrome.app /Contents/MacOS/Google\ Chrome --remote-debugging-port=9222

Linux

Open the console to execute the commandgoogle-chrome --remote-debugging-port=9222

2. Install the Chrome Debug plug-in

Click the extension button in the left sidebar of Visual Studio Code, and then search Enter Debugger for Chrome in the box and install the plug-in, then enter it again. After the installation is complete, click reload to restart.

#3. Create a Debug configuration file

Click the Debug button in the left sidebar of Visual Studio Code, and in the pop-up debug configuration window Click the Settings gear, then select chrome, VS Code will generate a .vscode directory in the root directory of the workspace. There will be a lanch.json file in it and it will automatically open

Use the following configuration file to override the automatic generation lanch.json file contents.

Note: The port number in the URL must be consistent with the startup port number configured by WEBPACK.

{
  // Use IntelliSense to learn about possible attributes.
  // Hover to view descriptions of existing attributes.
  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
  "version": "0.2.0",
  "configurations": [
    {
      "type": "chrome",
      "request": "attach",
      "name": "Attach to Chrome",
      "port": 9222,
      "webRoot": "${workspaceRoot}/src",
      "url": "http://localhost:8080/#/",　
      "sourceMaps": true,
      "sourceMapPathOverrides": {
        "webpack:///src/*": "${webRoot}/*"
      }
    }
  ]
}

4. Modify the webpack configuration

If it is a vue project packaged based on webpack, there may be breakpoint mismatches Question, some modifications are needed:

(1) Open the index.js file in the config directory under the root directory

(2) Change the devtool value under the dev node to 'eval -source-map'

(3) Change the cacheBusting value under the dev node to false

##5. Turn on debugging

vscode tutorial

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