标签：function 转换 name Example func new class
class Example {
constructor(name) {
this.name = name
}
func() {
console.log(this.name)
}
}
/**
* 1.class使用严格模式
* 2.Example只能通过new调用
* 3.func不能通过new调用
* 4.func不可被枚举
*/
'use strict'
function Example(name) {
if (!(this instanceof Example)) {
throw new TypeError("Class constructor Example cannot be invoked without 'new'")
}
this.name = name
}
Object.defineProperty(Example.prototype, 'func', {
value: function () {
if (!(this instanceof Example)) {
throw new TypeError("func is not a constructor")
}
console.log(this.name)
},
enumerable: false,
})
标签：function,
转换,
name,
Example,
func,
new,
class
From： https://www.cnblogs.com/whh666/p/16907082.html