webpack v4 从dev到prd的方法

概述 本月迎来了 v4 正式版的发布，本文用于学习新特性和总结开发必用plugin & loader，从dev到prd，走你~ Big changes Environment Node.js 4 is no longer supported. Source Code was upgraded to a higher ecmascript version. Usage You have to choose (mode or –mode) between two modes now: production or development 本次新版本中引入了 mode 配置项，开发者可在 none，d