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How can I add new array elements at the beginning of an array in JavaScript?

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shafeeque answered on July 23, 2019 Popularity 10/10 Helpfulness 3/10

answer How can I add new array elements at the beginning of an array in JavaScript?

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How can I add new array elements at the beginning of an array in JavaScript?

Comment

var arr = [23, 45, 12, 67];
arr = [34, ...arr]; // RESULT : [34,23, 45, 12, 67]

console.log(arr)

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: stackoverflow.com

Tags: add elements javascript

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Contributed on Mar 15 2022

shafeeque

0 Answers Avg Quality 2/10

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javascript add new array element to start of array

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var colors = ["white","blue"];
colors.unshift("red"); //add red to beginning of colors
// colors = ["red","white","blue"]

Popularity 10/10 Helpfulness 9/10 Language javascript

Source: Grepper

Tags: add

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Contributed on Jul 23 2019

Grepper

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javascript add in array first

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const array = [2, 3, 4];
const elementToAdd = 1;

array.unshift(elementToAdd);

console.log(array);  // Output: [1, 2, 3, 4]

Popularity 9/10 Helpfulness 8/10 Language javascript

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Contributed on Sep 11 2023

YOU.com

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js add element to front of array

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//Add element to front of array
var numbers = ["2", "3", "4", "5"];
numbers.unshift("1");
//Result - numbers: ["1", "2", "3", "4", "5"]

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: add

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Contributed on Oct 18 2020

QuickShotCodeBot

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js add begin array

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array = ['b', 'c']
array.unshift('a')
//array = ['a','b', 'c']

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: add javascript javas

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Contributed on Feb 03 2022

Bloody Batfish

0 Answers Avg Quality 2/10

javascript array add front

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// example:
let yourArray = [2, 3, 4];
yourArray.unshift(1); // yourArray = [1, 2, 3, 4]

// syntax:
// <array-name>.unshift(<value-to-add>);

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: add

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Contributed on Dec 08 2020

Jacques_Kirstein

0 Answers Avg Quality 2/10

how add an element on an array in the beginning on js

Comment

In JavaScript, you use the unshift() method 
to add one or more elements to the beginning 
of an array and it returns the array's 
length after the new elements have been added.


example:

var colors = ['white', 'blue'];

colors.unshift('red'); 
console.log(colors);

// colors = ['red', 'white', 'blue']

var numbers = [2, 3, 4, 5];
numbers.unshift(1);

console.log(numbers);
//  numbers: [ 1, 2, 3, 4, 5 ]

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: add

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Contributed on Oct 24 2022

Sagor Ahamed

0 Answers Avg Quality 2/10

how to add element in the first array beggining

Comment

let myArray = [2, 3, 4, 5];
let newElement = 1;
myArray.unshift(newElement);

console.log(myArray); // Output: [1, 2, 3, 4, 5]

Popularity 8/10 Helpfulness 4/10 Language python

Source: chat.openai.com

Tags: add element elem

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Contributed on Jul 30 2023

MD Jame

0 Answers Avg Quality 2/10

insert element at beginning of array javascript

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// Use unshift method if you don't mind mutating issue
// If you want to avoid mutating issue
const array = [3, 2, 1]

const newFirstElement = 4

const newArray = [newFirstElement].concat(array) // [ 4, 3, 2, 1 ]

console.log(newArray);

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: element

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Contributed on Nov 20 2020

Mobile Star

0 Answers Avg Quality 2/10

Add an item to the beginning of an Array

Comment

let newLength = fruits.unshift('Strawberry') // add to the front
// ["Strawberry", "Banana"]

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: developer.mozilla.org

Tags: add

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Contributed on Jul 02 2021

Ronnie

0 Answers Avg Quality 2/10

How can I add new array elements at the beginning of an array in JavaScript?

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