How to use Array.prototype.pop() in a loop In Javascript
To truncate an array using `Array.prototype.pop()` in a loop, iterate backward over the array and use `pop()` to remove elements until the desired length is reached. This approach modifies the original array by removing elements from the end.
Example: In this example we defines an array and a length to keep, then removes elements from the array using a loop and pop until the array has the desired length, finally logging the modified array.
const array = [1, 2, 3, 4, 5];
const lengthToKeep = 3;
for (let i = 0; i < array.length - lengthToKeep; i++) {
array.pop();
}
console.log(array);
Output
[ 1, 2, 3, 4 ]
How to truncate an array in JavaScript ?
In JavaScript, there are two ways of truncating an array. One of them is using length property and the other one is using splice() method. In this article, we will see, how we can truncate an array in JavaScript using these methods.
These are the following ways to truncate an array:
Table of Content
- Using length Property
- Using splice() Method
- Using slice() Method
- Using Lodash _.truncate() Method
- Using Array.prototype.pop() in a loop