MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Array › shift
Array.prototype.shift() - JavaScript | MDN
The removed element from the array; undefined if the array is empty. The shift() method shifts all values to the left by 1 and decrements the length by 1, resulting in the first element being removed.
W3Schools
w3schools.com › jsref › jsref_shift.asp
JavaScript Array shift() Method
The shift() method removes the first item of an array.
Videos
Mimo
mimo.org › glossary › javascript › array-shift
JavaScript Array shift: Syntax, Usage, and Examples
Become a full-stack developer. Learn HTML, CSS, JavaScript, and React as well as NodeJS, Express, and SQL ... Master the language of the web. Learn variables, functions, objects, and modern ES6+ features ... The shift() method removes the first element from an array and returns that element.
Programiz
programiz.com › javascript › library › array › shift
JavaScript Array shift()
let languages = ["English", "Java", "Python", "JavaScript"]; // removes the first element of the array let first = languages.shift(); console.log(first); console.log(languages); // Output: English // [ 'Java', 'Python', 'JavaScript' ]
GeeksforGeeks
geeksforgeeks.org › javascript › javascript-array-shift-method
JavaScript Array shift() Method - GeeksforGeeks
September 18, 2024 - Indices of the remaining elements are adjusted, decrementing by one to fill the gap left by the removed element. The function func() removes the first element from array using the shift() method.
JavaScript Tutorial
javascripttutorial.net › home › javascript array methods › array.prototype.shift()
JavaScript Array shift() Method
November 6, 2024 - For example: let greetings = { 0: 'Hi', 1: 'Hello', 2: 'Howdy', length: 3, removeFirst() { return [].shift.call(this); }, }; const greeting = greetings.removeFirst(); console.log(greeting); console.log(greetings);Code language: JavaScript ...
Vultr Docs
docs.vultr.com › javascript › standard-library › Array › shift
JavaScript Array shift() - Remove First Element | Vultr Docs
November 25, 2024 - ... let numbers = [1, 2, 3, 4, 5]; numbers.shift(); console.log(numbers.length); // Outputs: 4 Explain Code · In this example, removing one element from the numbers array reduces its length from 5 to 4.
TutorialsPoint
tutorialspoint.com › home › javascript › javascript array shift method
JavaScript Array Shift Method
September 1, 2008 - The JavaScript Array.shift() method is used to remove the first element from an array and returns the removed element. This method reduces the length of the original array by one. When we call this method on the empty array, it returns "undefined".
Flexiple
flexiple.com › javascript › javascript-shift
Javascript Shift() - uses and limitations - Flexiple
Ex: You’re dealing with an array that’s sorted based on a parameter say point, and now you want the first element to be removed from the array. Javascript shift works best here as it removes the first character ensuring he doesn’t participate again and also returns the element so that it can be stored for reference.
freeCodeCamp
forum.freecodecamp.org › guide
How to use JavaScript Array.prototype.shift() - JavaScript Shift Explained with Examples
June 20, 2019 - This will also change the length of the array Syntax var array = [1, 2, 3, 4]; array.shift(); Description .shift() will remove the element at index 0 of the array upon which it is called.
Top answer 1 of 5
35
array1 = array1.concat(array1.splice(0,3));
run the following in Firebug to verify
var array1 = ["t0","t1","t2","t3","t4","t5"];
console.log(array1);
array1 = array1.concat(array1.splice(0,3));
console.log(array1);
results in
["t0", "t1", "t2", "t3", "t4", "t5"]
["t3", "t4", "t5", "t0", "t1", "t2"]
2 of 5
19
You can slice the array and then join it in reversed order:
var array2 = array1.slice(3).concat(array1.slice(0, 3));
Top answer 1 of 4
2
You could subtract one from the index and add the lenght to prevent negative values, get the reaminder with the length and take it as index for the element for mapping.
function shift(arr) {
return arr.map((_, i, a) => a[(i + a.length - 1) % a.length]);
}
const b = [{ value: "" }, 8, "left"];
console.log(shift(b)); 2 of 4
1
map may not be the most appropriate here, but if you insist,
let arr = [{value: ""}, 8, "left"];
let shifted = arr.map((_, i, a) => a[(i + 1) % a.length]);
console.log(shifted);Codecademy
codecademy.com › docs › javascript › arrays › .shift()
JavaScript | Arrays | .shift() | Codecademy
June 9, 2022 - Removes and returns the first element of the array. All subsequent elements will shift down one place. ... Front-end engineers work closely with designers to make websites beautiful, functional, and fast. ... Learn how to use JavaScript — a powerful and flexible programming language for adding website interactivity.
W3Resource
w3resource.com › javascript › object-property-method › array-shift.php
JavaScript shift() Method : Array Object
var fruitslist = new Array("Orange","Apple","Banana","Chery" ); var newParagraph = document.createElement("p"); var newText = document.createTextNode ("List of Fruits : "+fruitslist); newParagraph.appendChild(newText); document.body.appendC...
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Array › unshift
Array.prototype.unshift() - JavaScript | MDN
const arr = [1, 2]; arr.unshift(0); // result of the call is 3, which is the new array length // arr is [0, 1, 2] arr.unshift(-2, -1); // the new array length is 5 // arr is [-2, -1, 0, 1, 2] arr.unshift([-4, -3]); // the new array length is 6 // arr is [[-4, -3], -2, -1, 0, 1, 2] arr.unshift([-7, ...
Educative
educative.io › answers › what-is-the-arrayshift-method-in-javascript
What is the array.shift() method in JavaScript?
The following code uses array.shift() and shifts the array twice:
WebPlatform
webplatform.github.io › docs › javascript › Array › shift
shift · WebPlatform Docs
Removes the first element from an array and returns it.
Appdividend
appdividend.com › 2018 › 12 › 18 › javascript-array-shift-example-tutorial
JavaScript Array shift() Method
September 1, 2025 - If the array is empty before the call, it returns undefined. let apps = []; removed_app = apps.shift(); console.log(removed_app); // Output: undefined (since the array is empty) console.log(apps); // Output: [] (the array remains empty)
Code Highlights
code-hl.com › home › javascript › tutorials
JavaScript Array shift() Method | Code Highlights
December 24, 2023 - In the snippet above, we see the shift() method at work. It removed "Apple" from the fruits array and returned it, leaving the rest of the array intact but shorter by one element.
GeeksforGeeks
geeksforgeeks.org › javascript › shift-vs-pop-method-in-javascript
Shift() vs pop() Method in JavaScript - GeeksforGeeks
July 23, 2025 - <script> function func() { // Original array var array = ["GFG", "Geeks", "for", "Geeks"]; // Checking for condition in array var value = array.shift(); console.log(value); console.log(array); } func(); </script> ... Javascript Array pop() method: The JavaScript Array pop() Method is used to remove the last element of the array and also returns the removed element. This function decreases the length of the array. ... Example: Below is the example of the array pop() method.