Hello Everyone.

Firstly we should know What is Array.

As we know we have different Array methods are there.

Array: An array is a special variable, which can hold more than one value

const array_name = [item1, item2, ...];

const cars = ["Saab","Volvo","BMW"];
Note: Array indexes start with 0.

[0] is the first element. [1] is the second element.

Converting Arrays to Strings:

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.toString(); //Banana,Orange,Apple,Mango

Popping and Pushing:

pop() method removes the last element from an array

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.push("Kiwi"); //Banana,Orange,Apple,Mango,Kiwi

push() method returns the new array length

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.pop("Kiwi"); //Mango

Array shift() & unShift():

The shift() method removes the first element from an array and returns that removed element

const array1 = [1, 2, 3];
console.log(array1.shift());// 1

UnShift():

The unshift() method adds a new element to an array (at the beginning), and "unshifts" older elements:

const array1 = [1, 2, 3];

console.log(array1.unshift(4, 5));
// Expected output: 5

console.log(array1);
// Expected output: Array [4, 5, 1, 2, 3]

Splice() And Slice():

splice method will return the modified array.Splice() method will take 3 arguments.

Syntax: array.splice(index, howMany, item1, item2, ...)

let array = [1, 2, 3, 4, 5];
let removed = array. splice(1, 2); 
console.log(array); // [1, 4, 5]
console.log(removed); // [2, 3]

Slice():

The unshift method returns the new array.

const fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"];
const citrus = fruits.slice(1, 3);

sort():

The sort() method sorts an array alphabetically

const months = ['March', 'Jan', 'Feb', 'Dec'];
months.sort();
console.log(months);
// Expected output: Array ["Dec", "Feb", "Jan", "March"]

reverse():

The reverse() method reverses the elements in an array

const items = [1, 2, 3];
console.log(items); // [1, 2, 3]

items.reverse();
console.log(items);// [3, 2, 1]