本文已参与「新人创作礼」活动，一起开启掘金创作之路。

JavaScript链式调用

// 链式调用
class User {
  constructor() {
    this.height = 0
    this.weight = 0
  }
  info() {
    console.log("信息",this.height,this.weight)
    return this
  }
  setHeight(val) {
    this.height = val
    return this
  }
}
let user = new User()
user.info().setHeight(10).info()