how to use javascript Object.defineProperty

Question

I looked around for how to use the Object.defineProperty method, but couldn\'t find anything decent.

Someone gave me this snippet of code:

Object.def         


        

Answer 1

Defines a new property directly on an object, or modifies an existing property on an object, and return the object.

Note: You call this method directly on the Object constructor rather than on an instance of type Object.

   const object1 = {};
   Object.defineProperty(object1, 'property1', {
      value: 42,
      writable: false, //If its false can't modify value using equal symbol
      enumerable: false, // If its false can't able to get value in Object.keys and for in loop
      configurable: false //if its false, can't able to modify value using defineproperty while writable in false
   });

Simple explanation about define Property.

Example code: https://jsfiddle.net/manoj_antony32/pu5n61fs/