JavaScript Array

JavaScript  Array

In JavaScript Array is a special variable that can hold/store multiple values under a single name. Array in JavaScript can store value with any data type and can also store mixture of various data types.

Creating An Array:

const arrayName = [value1, value2 ,value3];


const names = ["Alok", "Shubham", "Divya", "Abhi", "Abhay", "Ankit"];
console.log(names);


// Output    ["Alok", "Shubham", "Divya", "Abhi", "Abhay", "Ankit"]

There are various methods provided by JavaScript, we can categorise broadly it into four parts:

1.Basic Array Methods

  • concat():

Console (1).png

  • slice()

Console (2).png

  • reverse()

Console (3).png

  • join()

Console (5).png

2.Array Manipulation Method

  • shift()

Console (9).png

  • unshift()

Console (10).png

  • push()

Console (11).png

  • pop()

Console (14).png

  • splice()

Console (15).png

3.Higher Order Function

  • forEach()

Console.png

  • map()

Console (4).png

  • filter()

Console (6).png

  • find()

Console (7).png

  • findIndex()

Console (18).png

  • every()

Console (12).png

  • some()

Console (13).png

  • reduce()

Console (16).png

4.Basic Array Check Method

  • indexOf()

Console (19).png

  • lastIndexOf()

Console (20).png

  • includes()

Console (21).png

  • length

Console (22).png