Determine if a JavaScript property has a getter or setter defined?

Question

Is it possible, given an object and property name to determine if that property is defined using either a getter or setter, or is it completely transparent? I only want to d

Answer 1

Object.defineProperty's get or set Method default value will be undefined if its not defined in the descriptor. This is ideal way to identify.

Let's say example:

var User = {};

Object.defineProperty(User, 'name', {
    get: function () {
        return _name;
    },
    enumerable: true
});

Object.defineProperty(User, 'designation', {
    get: function () {
        return _designation;
    },
    set: function (val) {
        _designation = val;
    },
    enumerable: true
});


var d = Object.getOwnPropertyDescriptor(User, 'name');
console.log(d.set == undefined);

Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperty