How to use shift and unshift method in javascript

Introduction:

In this article, we will explain how to use shift() and unshift() to add and remove the elements from the array in javascript.

shift() used to remove the first element of the array.

unshift() is used to add one or more elements to the array.

syntax:

arr.shift()

Example:

var arr = [100, 289, 760, 430, 290];
var value = arr.shift();

console.log(value);
console.log(arr);

Output:

var arr = [];
var value = arr.shift();

console.log(value);
console.log(arr);

syntax:

arr. unshift(ele1,ele2………)

Example

var arr = [838,90,320,410];
console.log(arr.unshift(220,560));
console.log(arr);

Thanks for using pheonix solutions.

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