线上环境去除console

npm i -D babel-plugin-transform-remove-console

babel.config.js

// 获取 VUE_APP_ENV 非 NODE_ENV，测试环境依然 console 也就是说只有在上线环境移出所以的console 
const IS_PROD = ['production', 'prod'].includes(process.env.VUE_APP_ENV)
const plugins = [
  [
    'import',
    {
      libraryName: 'vant',
      libraryDirectory: 'es',
      style: true
    },
    'vant'
  ],
]
// 去除 console.log
if (IS_PROD) {
  plugins.push('transform-remove-console')
}
module.exports = {
  presets: [
    '@vue/cli-plugin-babel/preset'
  ],
  plugins

}