JavaScript Array pop()

In this tutorial, we will learn about the JavaScript Array push() method with the help of examples.

The pop() method removes the last element from an array and returns that element.

Example

let city = ["California", "Barcelona", "Kathmandu", "Paris"];

// remove the last element "Paris" from the city array
let removedCity = city.pop();
console.log(removedCity);

// Output: Paris

pop() Syntax

The syntax of the pop() method is:

arr.pop()

Here, arr is an array.


pop() Parameters

The pop() method does not have any parameters.


pop() Return Value

  • Removes the last element from array and returns that value.
  • Returns undefined if the array is empty.

Notes:

  • This method changes the original array and its length.
  • To remove the first element of an array, use the JavaScript Array shift() method.

Example: Using pop() method

var languages = ["JavaScript", "Python", "Java", "C++", "Lua"];

var popped = languages.pop();
console.log(languages); // [ 'JavaScript', 'Python', 'Java', 'C++' ] console.log(popped); // Lua // pop returns any type of object var numbers = [ [1, 2, 3], [4, 5, 6], [-5, -4, -3], ];
console.log(numbers.pop()); // [ -5, -4, -3 ]
console.log(numbers); // [ [ 1, 2, 3 ], [ 4, 5, 6 ] ]

Output

[ 'JavaScript', 'Python', 'Java', 'C++' ]
Lua
[ -5, -4, -3 ]
[ [ 1, 2, 3 ], [ 4, 5, 6 ] ]

Recommended Readings:

Did you find this article helpful?