04- configuration git hook, used to verify the code before submission precommit

Use a plug-in: husky, this plugin can help us before submitting the code, code style checking, if it does not eslint specification, is not submitted to a remote warehouse.

1. Install 

NPM in huskey -D

2. placed package.json

"scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "lint": "eslint --ext .js --ext .jsx --ext .vue client/",
    "lint-fix": "eslint --fix --ext .js --ext .jsx --ext .vue client/",
    "precommit": "npm run lint",
    "clean": "rm -rf dist",
    "build:client": "cross-env NODE_ENV=production webpack --config build/webpack.config.client.js",
    "build": "npm run clean && npm run build:client",
    "dev": "cross-env NODE_ENV=development webpack-dev-server --config build/webpack.config.client.js"
  },　　　　

principle:

After installing husky, each execution git commit 'xxx', it will automatically call -m npm run precomit