What are the three debugging methods provided by Vue

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Configure debugging in VS Code

When building a project using Vue CLI 2:

Update the devtool property in config/index.js:

Devtool: 'source-map'

Click the Debugger icon in Activity Bar to come to the Debug view:

Select the Chrome/Firefox:Launch environment. Replace the contents of launch.json with:

{"version": "0.2.0", "configurations": [{"type": "chrome", "request": "launch", "name": "vuejs: chrome", "url": "http://localhost:8080"," webRoot ":" ${workspaceFolder} / src "," breakOnLoad ": true "sourceMapPathOverrides": {"webpack:///src/*": "${webRoot} / *"}, {"type": "firefox", "request": "launch", "name": "vuejs: firefox", "url": "http://localhost:8080"," webRoot ":" ${workspaceFolder} / src " "pathMappings": [{"url": "webpack:///src/", "path": "${webRoot} /"}]}

Start debugging:

Set the breakpoint:

# launch Project npm run dev

Select "vuejs:chrome" on the debug page:

II. Debugger statement

Recommend

Function potentiallyBuggyCode () {debugger / / do potentially buggy stuff to examine, step through, etc.}

Browser: F12 opens DevTools, and when running the program, it stops at the debbger statement:

Note: when the Eslint plug-in is installed, click Quick repair, Disable no-debugger for this line. Otherwise, the debugger statement is automatically cleared when it is saved.

III. Vue Devtools

Google browser plug-in.

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