map filter and reduce array methods in JavaScript with examples | what are map filter and reduce
Hello Friends, map, reduce, and filter are all array methods in JavaScript. Each one will iterate over an array and perform a transformation or computation. Each will return a new array based on the result of the function. In this article, you will learn why and how to use each one
map filter and reduce array methods in JavaScript with examples | difference between map and filter and reduce in JavaScript
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Content:
0:00 Introduction
0:38 What is map method in JavaScript
2:26 Syntax of map method
3:47 map method examples in JavaScript
10:03 What is filter method in JavaScript
12:20 Syntax of filter method
13:43 filter method examples in JavaScript
17:02 What is reduce method in JavaScript
19:29 Syntax of reduce method
22:36 Sum of array elements using reduce method
25:53 Calculate the savings from expenses list
28:56 Group the array elements using object key using reduce
34:31 Remove the duplicate elements from the array in JavaScript
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