How to use Array.from() and find() method In Javascript

2. Using forEach method

In this approach, we are using Array.from() to convert the Map entries into an array of key-value pairs. Then, we apply the find() method to search for the entry where the key matches the specified key.

Syntax

Array.from(object, mapFunction, thisValue)
array.find(function(currentValue, index, arr), thisValue)

JavaScript

const map = new Map();
map.set('name', 'w3wiki');
map.set('CEO', 'Sandeep Jain');
const key = 'name';
const value = Array.from(map).find(([k, v]) => k === key)?.[1];
console.log(value);

Output

w3wiki

How to get the Value by a Key in JavaScript Map?

JavaScript Map is a powerful data structure that provides a convenient way to store key-value pairs and retrieve values based on keys. This can be especially useful when we need to associate specific data with unique identifiers or keys.