How to useMap() and forEach() Method in Javascript
In this method, we will convert an object into a map by passing it to another function called createMap() and using the object.forEach() method
Example:
Javascript
let obj = { prop_1: 'val_1', prop_2: 'val_2', prop_3: 'val_3'}; function createMap(obj) { let map = new Map(); Object.keys(obj).forEach(key => { map.set(key, obj[key]); }); return map; } function GFG_Fun() { const map = createMap(obj); console.log( "Val of prop_1 is " + map.get('prop_1')); } GFG_Fun() |
Output
Val of prop_1 is val_1
How to convert a plain object into ES6 Map using JavaScript ?
The task is to convert a JavaScript Object into a plain ES6 Map using JavaScript. we’re going to discuss a few techniques. To understand the difference between a map and an object please go through the Map vs Object in JavaScript article.
Below are the following approaches to converting a plain object into ES6 Map using JavaScript:
- Using map() Constructor and Object Entries Method
- Using Map() and forEach() Method
- Using Map() and reduce() Method