Array pop(), push(), shift() and unshift() Methods in Javascript

The pop() method of an array (or any other object) pops one or more numbers from it and produces a value, which is often used together with the shift() method. The push() method pushes one or more values onto an array, while the unshift() method shifts the values at index 0 by one position to the right.

shift and unshift js

Repulsive Rhinoceros on May 12, 2020

let cats = ['Bob', 'Willy', 'Mini'];

cats.shift(); // ['Willy', 'Mini']

let cats = ['Bob']; 

cats.unshift('Willy'); // ['Willy', 'Bob']

cats.unshift('Puff', 'George'); // ['Puff', 'George', 'Willy', 'Bob']

Source: alligator.io

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You can use push(), pop(), shift() and unshift() to manipulate the first index of an array. The above code snippet shows usage of these methods.

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Array pop(), push(), shift() and unshift() Methods in Javascript

shift and unshift js

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