Is it possible to add dynamically named properties to JavaScript object?

Question

In JavaScript, I\'ve created an object like so:

var data = {
    \'PropertyA\': 1,
    \'PropertyB\': 2,
    \'PropertyC\': 3
};

Is it poss

Answer 1

I know there are several answers to this post already, but I haven't seen one wherein there are multiple properties and they are within an array. And this solution by the way is for ES6.

For illustration, let's say we have an array named person with objects inside:

 let Person = [{id:1, Name: "John"}, {id:2, Name: "Susan"}, {id:3, Name: "Jet"}]

So, you can add a property with corresponding value. Let's say we want to add a Language with a default value of EN.

Person.map((obj)=>({...obj,['Language']:"EN"}))

The Person array now would become like this:

Person = [{id:1, Name: "John", Language:"EN"}, 
{id:2, Name: "Susan", Language:"EN"}, {id:3, Name: "Jet", Language:"EN"}]