JS chain call sleep function ------ "autumn trick punch in Chapter 2"

Implement a function , First, the output hello 5s Then output world as follows :

let person = new Person()
person.say('hello')
.sleep(5000)
.say('world')
.done()

Ideas :

• Use one task Tasks used for array access
• done Function is aysnc function
• for Loop handle tash Array await Function execution per function

class Persion {
    
  constructor() {
    
    this.task = [];
  }
  
  say(msg) {
    
    this.task.push(
      () =>
        new Promise((reslove) => {
    
          console.log(msg);
          reslove();
        })
    );
    return this;
  }
  sleep(timeout) {
    
    this.task.push(
      () =>
        new Promise((reslove) => {
    
          setTimeout(() => reslove(''), timeout);
        })
    );
    return this;
  }
  async done() {
    
    for (let i = 0; i < this.task.length; i++) {
    
      await this.task[i].call(null);
    }
  }
}

let person = new Persion();
person.say('hello').sleep(5000).say('world').done();

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