What is the Difference Between Pop and Push in Javascript
Javascript arrays are a fundamental data structure used in web development. They provide a simple and efficient way to store and manipulate collections of data. Two of the most common methods used to add elements to an array in Javascript are pop and push. While both methods can be used to add elements to an array, they differ in how they modify the array. In this tutorial, we will explore the difference between pop and push in Javascript.
Pop Method
The pop method is used to remove the last element from an array and return that element. When the pop method is called on an array, the length of the array is decreased by one, and the element that was removed is returned. Here is an example:
let fruits = ["apple", "banana", "orange"]; let lastFruit = fruits.pop(); console.log(lastFruit); // Output: "orange" console.log(fruits); // Output: ["apple", "banana"]
In the example above, the pop method is called on the fruits array, and the last element “orange” is removed from the array and returned. The fruits array is then modified to remove the last element.
Push Method
The push method is used to add one or more elements to the end of an array. When the push method is called on an array, the length of the array is increased by the number of elements that were added. Here is an example:
let fruits = ["apple", "banana"];
fruits.push("orange");
console.log(fruits); // Output: ["apple", "banana", "orange"]
In the example above, the push method is called on the fruits array to add the element “orange” to the end of the array. The fruits array is then modified to include the new element.
Difference Between Pop and Push
The main difference between pop and push is that pop removes the last element from an array and returns it, while push adds one or more elements to the end of an array. Pop decreases the length of the array by one, while push increases the length of the array by the number of elements that were added.
In this tutorial, we have learned about the difference between pop and push in Javascript. Pop is used to remove the last element from an array and return it, while push is used to add one or more elements to the end of an array. Both methods are useful for manipulating arrays in Javascript and should be used appropriately based on the needs of your code.
