# A Complete Guide to Arrays in JavaScript


An array is a data structure which store multiple values(*object , Boolean, etc*) under a single variable. Each value is called an element specified by an index(i).



## JavaScript Array Methods :
There are lot of array methods and all of them are important, but I will discuss a few methods.
> Example of array

```

let array = [
  1,
  "I write code",
  true,
  techAvenger = {
    CEO: "Sudhanshu Kumar",
    CTO: "Hitesh Choudhary",
    CIO: "Krish Naik",
  },
  setvices = [
    "iNeuron",
    "LCO",
    "findcoder",
    "uiColorpicker",
    true,
    "I write code",
  ],
];

> Array store - Object , array , integer , string , Boolean atc.

``` 
## length :

```
let countries = ["India", "New Zealand", "Brazil", " 😍"];
console.log(countries.length);
> result: 4
``` 
 The length property returns the number of elements in that array. 

## sort:

```
let alpha = ["d", "b", "a", "e", "c"];
alpha.sort()
> result: [ 'a', 'b', 'c', 'd', 'e' ]
``` 
The `sort()` method sorts an array alphabetically
## pop:

```
const socialMedia = ["Instagram", "Linkedin", "Twitter", "Facebook"];
socialMedia.pop()
> result: [ 'Instagram', 'Linkedin', 'Twitter' ]
``` 
The pop() method removes the last element from an array . If you do colsole.log(socialMedia.pop()) then you get the removed value  

## push:

```
const emojis = ["😀", "😄", "😁", "😆", "😂"];
emojis.push("🤣")
result: ["😀", "😄", "😁", "😆", "😂" ,"🤣" ]
``` 
The **push()** method adds a new element to an array (at the end)

## shift:

```
const emojis = ["remove","😀", "😄", "😁", "😆", "😂"];
emojis.shift()
result: ["😀", "😄", "😁", "😆", "😂" ]
``` 
The **shift()** method removes the first array element 


## unshift:

```
const emojis = ["😀", "😄", "😁", "😆", "😂"];
emojis.unshift("add me")
result: ['add me',"😀", "😄", "😁", "😆", "😂" ]
``` 
The **unshift()** method adds a new element to an array (at the beginning), and "unshifts" older elements

## concat:

```
const india = [" Virat Kohli", " Rohit Sharma", " Hardik Pandya"];
const pakistan = ["Babar Azam", "Mohammad Wasim", "Hasan Ali"];
india.concat(pakistan)
result: [" Virat Kohli", " Rohit Sharma", " Hardik Pandya" , "Babar Azam", "Mohammad Wasim", "Hasan Ali"]
``` 
The **concat()** method creates a new array by merging  existing arrays

## split:

```
let name = "Deepak";
name.split("")
result: [ 'D', 'e', 'e', 'p', 'a', 'k' ]
``` 
splits a string into an array of substrings, and returns the array

## splice:

```
const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.splice(2, 0, "Lemon", "Kiwi");
result: [ Banana,Orange,Lemon,Kiwi,Apple,Mango]
``` 
The first parameter (2) defines the position where new elements should be added (spliced in).
The second parameter (0) defines how many elements should be removed.
The rest of the parameters ("Lemon" , "Kiwi") define the new elements to be added.
The splice() method returns an array with the deleted items:


> ##These are some JavaScript array methods. Hope you enjoy reading this article. If you like it, give it a hard and leave a comment so that I can be inspired and I can write articles like this