Question

How to use abstraction and hide part of the properties of an object in JavaScript

Answer 1

class Worker {
    constructor(id, _name, _age) {
        this.id = id;
        let name = _name;
        let age = _age;
        this.show = function () {
            console.log(this.id + ' ' + name + ' ' + age);
        };
    }
}
  
const worker = new Worker(2345, 'Tom', 54);

worker.show();

console.log(worker.id);

console.log(worker.name);

worker.id = 93877;
worker.name = "abc";

worker.show();

  

    
/*
run:
  
2345 Tom 54
2345
undefined
93877 Tom 54

*/
 

 

70+ SQL courses for beginners and professionals