How to fill a Javascript object literal with many static key/value pairs efficiently?

Question

The typical way of creating a Javascript object is the following:

var map = new Object();
map[myKey1] = myObj1;
map[myKey2] = myObj2;

I need to

Answer 1

In ES2015 a.k.a ES6 version of JavaScript, a new datatype called Map is introduced.

let map = new Map([["key1", "value1"], ["key2", "value2"]]);
map.get("key1"); // => value1

check this reference for more info.