MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Array › pop
Array.prototype.pop() - JavaScript | MDN
The pop() method of Array instances removes the last element from an array and returns that element. This method changes the length of the array.
W3Schools
w3schools.com › jsref › jsref_pop.asp
W3Schools.com
cssText getPropertyPriority() getPropertyValue() item() length parentRule removeProperty() setProperty() JS Conversion · ❮ Previous JavaScript Array Reference Next ❯ · Remove (pop) the last element: const fruits = ["Banana", "Orange", "Apple", "Mango"]; fruits.pop(); Try it Yourself » ·
How expensive are push() and pop() array methods? Do they create a whole new array?
They don't create a new array. They mutate the original array in constant time. const nums = [1,2,3] nums.push(4). //nums now has [1,2,3,4] nums.pop() //nums now has [1,2,3] You can prevent mutation by using spread operator to create a new array out of original array in linear time. const newnums = [...nums,4] //newnums has [1,2,3,4] console.log(nums) //nums is still [1,2,3] Conclusion: imo both methods are fine, however you should use the immutable way if the array size is usually small and use the push pop way if the array size is too big. More on reddit.com
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4
June 21, 2022Array.pop - last two elements - JavaScript - Stack Overflow
I have a question using Array.pop function in JavaScript. Array.pop removes and returns the last element of an Array. My question is then: is it possible to remove and return the last TWO elements of More on stackoverflow.com
How can I remove an array element at a specific index only using pop?
I also can't think of a way to do it with pop(). I assumed this was a restriction from using other methods, not a requirement to use this method. ... You should only add to the result array in the if condition, not else. More on stackoverflow.com
When calling this .pop method to an array, why am I getting an unexpected .length result
Using .pop() on an array will remove the last element from the array and return the popped value. So, you are setting secretMessage equal to the removed/popped value from the array. I'm guessing your last element in secretMessage is a string which has a length of 10 ... The js pop method removes ... More on stackoverflow.com
Videos
02:22
JS Array Methods Explained #7 - POP Method - YouTube
02:46
Push and pop array methods in Javascript tutorial - YouTube
01:05
pop Array Method | JavaScript Tutorial - YouTube
01:49
Easily Understand pop() - A JavaScript Array Method - YouTube
00:52
JavaScript Array pop() method - JavaScript Tutorial for Beginners ...
00:58
Array.pop() and Array.shift() in JavaScript - YouTube
freeCodeCamp
forum.freecodecamp.org › javascript
Javascript array pop() function - JavaScript - The freeCodeCamp Forum
October 12, 2022 - In the following example i have used the following code but its not working. const myArray =[[“John”, 23], [“cat”, 2]]; i was ask to make myArray equals [[“John”, 23]]; after using pop() function on myArray . then make const removedFromArray equals [[“cat”, 2]]; Your code so far can’t solve this i need help my code so far: const myArray = [[“John”, 23], [“cat”, 2]]; var ab = myArray.pop(); var removedFromMyArray = myArray.pop();
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Array
Array - JavaScript | MDN
2 weeks ago - js · const fruits = ["Apple", "Banana", "Orange"]; const removedItem = fruits.pop(); console.log(fruits); // ["Apple", "Banana"] console.log(removedItem); // Orange · Note: pop() can only be used to remove the last item from an array. To remove multiple items from the end of an array, see the next example.
GeeksforGeeks
geeksforgeeks.org › javascript › how-to-use-push-pop-in-javascript-arrays
Use of push() & pop() Methods in JavaScript Arrays - GeeksforGeeks
January 15, 2026 - The array length increases after using push(). ... The pop() method is used to remove an element from an array.
Mimo
mimo.org › glossary › javascript › array-pop
JavaScript Array pop() method: Syntax, Usage, and Examples
The pop() method in JavaScript removes the last element from an array and returns that element. It changes the original array by reducing its length by one. The JavaScript array pop method is often used when working with stacks, where the last item added is the first one removed (LIFO – Last ...
GeeksforGeeks
geeksforgeeks.org › javascript › javascript-array-pop-method
JavaScript Array pop() Method - GeeksforGeeks
It reduces the array length by one after execution. Commonly used in stack implementations (LIFO-Last In, First Out). ... let a = [1,2,3,4]; console.log(a); // Remove the last element using pop() let b = a.pop(); console.log("Removed string ...
Published October 16, 2025
CoreUI
coreui.io › blog › what-is-javascript-array-pop-method
What is JavaScript Array.pop() Method? · CoreUI
March 18, 2024 - Vue.js · Imagine you’re at a party, and guests leave one by one, starting with the last person who arrived. The pop() method works similarly with JavaScript arrays; it removes the last element from an array and returns it. This action decreases ...
daily.dev
daily.dev › home › blog › get into tech › js pop: simplifying array manipulation
JS Pop: Simplifying Array Manipulation
February 4, 2025 - JavaScript Arrays: Collections that hold your data in order. Common Operations: Adding, removing, sorting, and filtering items. pop() Method: Removes the last item from an array, shortening it by one.
CodingNomads
codingnomads.com › javascript-array-unshift-shift-pop-push
JavaScript Array Essentials: Using pop, push, shift, and unshift
This method modifies the array in place, meaning it alters the original array directly rather than creating a new one. Next, the pop() method is invoked, which removes the last element of the array, again in place.
Reddit
reddit.com › r/learnjavascript › how expensive are push() and pop() array methods? do they create a whole new array?
r/learnjavascript on Reddit: How expensive are push() and pop() array methods? Do they create a whole new array?
June 21, 2022 -
If I create an empty array to use as a stack and use push() and pop() methods on it, is javascript creating a whole new array behind the scenes (which is expensive) or is it simply allocating memory for the new spot for that single element in case of a push and reclaiming it for pop?
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › Array › shift
Array.prototype.shift() - JavaScript | MDN
The shift() method shifts all values to the left by 1 and decrements the length by 1, resulting in the first element being removed. If the length property is 0, undefined is returned. The pop() method has similar behavior to shift(), but applied to the last element in an array.
Top answer 1 of 5
16
Split the array, use Array#slice to get the last two elements, and then Array#join with slashes:
var url = 'www.example.com/products/cream/handcreamproduct1';
var lastTWo = url
.split("/") // split to an array
.slice(-2) // take the two last elements
.join('/') // join back to a string;
console.log(lastTWo); 2 of 5
1
I love the new array methods like filter so there is a demo with using this
let o = 'www.example.com/products/cream/handcreamproduct1'.split('/').filter(function(elm, i, arr){
if(i>arr.length-3){
return elm;
}
});
console.log(o);
Top answer 1 of 4
3
You should only add to the result array in the if condition, not else. Use j as the index in the result, don't add or subtract it.
function removeAt(arr, index) {
var j = 0;
var arr2 = [];
for (var i = 0; i < arr.length; i++) {
if (i != index) {
arr2[j] = arr[i];
j++;
}
}
return arr2
}
console.log(removeAt([1, 2, 3, 4, 5], 3)) 2 of 4
2
If you are not allowed to use any Array function except pop(), you may save memory space by not creating an extra variable using it.
function removeAt(arr, index){
if(index>arr.length-1 || index<0) return arr;
for(let i=0; i<arr.length; i++) {
if(i>=index) {
arr[i] = arr[i+1];
}
}
arr.pop();
return arr;
}
Vultr Docs
docs.vultr.com › javascript › standard-library › Array › pop
JavaScript Array pop() - Remove Last Element | Vultr Docs
December 9, 2024 - This snippet continuously removes elements from the scores array as long as the last element of the array is 80 or more. It efficiently uses pop() to both alter the array and supply the conditional loop with the required checks.
Stack Overflow
stackoverflow.com › questions › 59997769 › when-calling-this-pop-method-to-an-array-why-am-i-getting-an-unexpected-lengt
When calling this .pop method to an array, why am I getting an unexpected .length result
So, you are setting secretMessage ... is a string which has a length of 10 ... The js pop method removes the last element from an array and returns that element....
HackerNoon
hackernoon.com › javascript-array-manipulation-understanding-the-pop-method-for-beginners
JavaScript Array Manipulation: Understanding the pop() Method for Beginners | HackerNoon
December 18, 2023 - Master JavaScript arrays: Learn 'pop()' method for efficient element removal in this beginner's guide.
Top answer 1 of 5
549
The easiest way is using shift(). If you have an array, the shift function shifts everything to the left.
var arr = [1, 2, 3, 4];
var theRemovedElement = arr.shift(); // theRemovedElement == 1
console.log(arr); // [2, 3, 4]
2 of 5
150
Just use arr.slice(startingIndex, endingIndex).
If you do not specify the endingIndex, it returns all the items starting from the index provided.
In your case arr=arr.slice(1).
Medium
medium.com › an-idea › javascript-arrays-push-pop-shift-unshift-adc8fb815fc0
JavaScript Arrays: push(), pop(), shift() & unshift() | by Amanda M Johnson | An Idea (by Ingenious Piece) | Medium
October 10, 2021 - works from the beginning of the array and removes the first element · like pop(), it returns the removed element or undefined · is destructive · relies on length property · Press enter or click to view image in full size · from MDN web ...