JavaScript - add items to Map

In this article, we would like to show you how to add items to Map in JavaScript.

Quick solution:

const myMap = new Map();

myMap.set('key1', 'value1');
myMap.set('key2', 'value2');
myMap.set('key3', 'value3');

Practical example

In this example, we use Map.prototype.set() to add items to the Map.

// ONLINE-RUNNER:browser;

const myMap = new Map();

myMap.set('key1', 'value1');
myMap.set('key2', 'value2');
myMap.set('key3', 'value3');

myMap.forEach((value, key) => {
  console.log(key, value);
});

Output:

key1 value1
key2 value2
key3 value3