JavaScript Map Exercise
Last Updated :
14 Nov, 2024
Improve
In JavaScript, a Map is a built-in collection that holds key-value pairs, where keys can be of any data type, including objects, functions, or primitive types. Maps are particularly useful when you need to associate data with specific keys and ensure fast lookup times for these keys.
let m = new Map([
["name", "Sourav"],
["age", 23],
["job", "Engineer"]
]);
console.log(m);
Output
Map(3) { 'name' => 'Sourav', 'age' => 23, 'job' => 'Engineer' }Map Basic Questions
- Map vs Object in JavaScript
- What is JavaScript Map and how to use it?
- Internal Working of Map in JavaScript
- Set vs Map in JavaScript
- Sort a Map in JavaScript
- Map to Array in JavaScript
- Combine Values of Two Maps having Same Key
- Update the Value for a Specific Key in Map
- Get Key by Value in a Map
- Check if a Map is Empty in JS
- Convert an Array of Objects to a Map in JS
Coding Problems Based on Set
Related Links
- JavaScript Map Reference
- Interesting Facts About Map in JavaScript
- Javascript Map Programming Examples
- JavaScript Tutorial
- JavaScript Examples
