Question

How to dynamically add new property to existing object in JavaScript

Answer 1

function Worker(id, name) {
    this.id = id;
    this.name = name;
    this.show = function() {
        console.log(this.id + ' ' + this.name);
    }
}
  
const worker = new Worker(2345, 'Tom');
console.log(worker);
  
worker.age = 52;
console.log(worker);
  
  
  
/*
run:
  
Worker { id: 2345, name: 'Tom', show: [Function] }
Worker { id: 2345, name: 'Tom', show: [Function], age: 52 }
  
*/
 

 

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