How to use Map.set() method In Javascript
In this method, we will use the built-in Map.set() method to update the value for a specific key.
Example: In this example. we will update the value of key(‘b’) in the given map using the map.set() method.
let m = new Map([
["a", 100],
["b", 200],
]);
console.log("Old value for key: 'b', "+m.get('b'));
m.set('b',1000)
console.log("New value for key: 'b', "+m.get('b'));
Output
Old value for key: 'b', 200 New value for key: 'b', 1000
JavaScript Program to Update the Value for a Specific Key in Map
In this article, we will see different approaches to update the value for a specific key in Map in JavaScript. JavaScript Map is a collection of key-value pairs. We have different methods to access a specific key in JavaScript Map.