Categories: javascript

Array Filter Method

The Array filter method is used to check against a given condition.

Task: print out all multiples of 3 in the given array:

let x = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15];

Answer:

let x = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15];

mulValue = (val) => {
return val % 3 === 0;
}

let result = x.filter(mulValue);
alert(result) // 3,6,9,12,15

Recent Posts

The Golden Ratio (φ)

1. What Is the Golden Ratio? The Golden Ratio, represented by the Greek letter φ (phi), is…

6 days ago

CSS Combinators

In CSS, combinators define relationships between selectors. Instead of selecting elements individually, combinators allow you to target elements based…

1 week ago

Boolean Algebra

Below is a comprehensive, beginner-friendly, yet deeply detailed guide to Boolean Algebra, complete with definitions, laws,…

1 week ago

Why It’s Difficult to Debug Other People’s Code (And what Can be Done About it)

Debugging your own code is hard enough — debugging someone else’s code is a whole…

2 weeks ago

Complete Git Commands

Git is a free, open-source distributed version control system created by Linus Torvalds.It helps developers: Learn how to…

2 weeks ago

Bubble Sort Algorithm

Bubble Sort is one of the simplest sorting algorithms in computer science. Although it’s not…

2 weeks ago