Write a prototype method for Array that returns a new array populated with the result of calling a provided function on every element in the calling array. Create an empty array to store the result.

From the classic for loop to the forEach() method, various techniques and methods are used to iterate through datasets in JavaScript. This method can have many uses when working with arrays. In this ...

This tutorial provides a comprehensive guide to JavaScript Map and Set, explaining their differences, use cases, and how to effectively utilize them. JavaScript offers a rich set of data structures ...