JavaScript combines constructor mode and prototype mode instances_javascript tips

The examples in this article describe how JavaScript uses the constructor pattern and the prototype pattern in combination. Share it with everyone for your reference. The details are as follows:

function testPrototype2(){
  function Person3(name, age, job){
    this.name=name;
    this.age=age;
    this.job=job;
    this.friends =["shelb", "court"];
  }
  Person3.prototype = {
    constructor:Person3,
    sayName:function(){
      alert(this.name);
    }
  }
  var person1 = new Person3("jack",10,"it");
  var person2 = new Person3("karry",1,"woker");
  person1.friends.push("tom");
  console.info(person1.friends);
  console.info(person2.friends);
  console.info(person1.friends==person2.friends);
  console.info(person1.sayName == person2.sayName);
}

I hope this article will be helpful to everyone’s JavaScript programming design.