在vue项目中,将juery设置为全局变量的方法

const webpack = require("webpack")

plugins: [
 new webpack.optimize.CommonsChunkPlugin('common.js'),
 new webpack.ProvidePlugin({
  jQuery: "jquery",
  $: "jquery"
 })
 ]

const webpack = require("webpack")

 resolve: {
 extensions: ['.js', '.vue', '.json'],
 alias: {
  'vue$': 'vue/dist/vue.esm.js',
  '@': resolve('src'),
  'jquery': 'jquery'
 }
 },

 plugins: [
 new webpack.ProvidePlugin({
  jQuery: "jquery",
  $: "jquery"
 })
 ]

 mounted: function() {
 console.log($);
 console.log($('#ss')[0].innerHTML);
 },