`transform-es2015-classes`和`transform-class-properties`区别？

Question

babel-plugin-transform-s2015-classes和babel-plugin-transform-class-properties有什么区别？功能是否有重叠？

Answer 1

首先，纠正你一个错误 是babel-plugin-transform-es2015-classes， 你少写个e 这个是babel对 ES2015 规范的 class 的实现，是没有 class property 的，这个你可以翻翻规范或者https://babeljs.io/docs/learn...

Classes support prototype-based inheritance, super calls, instance and static methods and constructors.

然而babel-plugin-transform-class-properties 你看一下官方给的例子:

class MyClass {
  myProp = 42;
  static myStaticProp = 21;

  constructor() {
    console.log(this.myProp); // Prints '42'
    console.log(MyClass.myStaticProp); // Prints '21'
  }
}