iconfont-webpack-plugin setup on webpack 4

_icons.scss

// use with <i class="svg-icon bank-icon"></i>
.svg-icon {
  vertical-align: middle; // you may not need this line depending on your icons
}

// borrowed from icomoon's font output
.svg-icon::before {
  font-weight: normal;
  font-style: normal;
  font-variant: normal;
  line-height: 1;

  speak: none;
  /* Better Font Rendering =========== */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

// this is where the magic happens - point this to your svg and all of them will be converted into a font!
.bank-icon::before {
  font-icon: url('../../icons/bank.svg');
}

vue.config.js

// This is for Vue CLI3's webpack config but it should work fine on any Webpack4 postcss-loader config.
// See the official docs for the basic setup: https://www.npmjs.com/package/iconfont-webpack-plugin#configuration

const merge = require('deepmerge')
const IconfontWebpackPlugin = require('iconfont-webpack-plugin');

module.exports = {
  chainWebpack: config => {
    config
      .module
      .rule('scss')
      .oneOf('normal')
      .use('postcss-loader')
      .tap(options => merge(options, {
        plugins: (loader) => new IconfontWebpackPlugin(loader)
      }))
  }
}