Selecting Last Element in Javascript Array

When working with JavaScript arrays, you may often find yourself needing to select the last element of the array. There are several ways to achieve this, and in this blog post, we will explore three different solutions.

Solution 1: Using the index

One straightforward way to select the last element of an array is by using the index of the last element. JavaScript arrays are zero-indexed, so the last element will always have an index of array.length - 1. Here’s an example:

const array = [1, 2, 3, 4, 5];
const lastElement = array[array.length - 1];
console.log(lastElement); // Output: 5

Solution 2: Using the pop() method

The pop() method removes the last element from an array and returns that element. By combining pop() with assigning the result to a variable, we can easily select the last element. Here’s an example:

const array = [1, 2, 3, 4, 5];
const lastElement = array.pop();
console.log(lastElement); // Output: 5

Solution 3: Using the slice() method

The slice() method can be used to extract a portion of an array. By passing -1 as the argument to slice(), we can extract the last element of the array. Here’s an example:

const array = [1, 2, 3, 4, 5];
const lastElement = array.slice(-1)[0];
console.log(lastElement); // Output: 5

These are three different solutions to select the last element of a JavaScript array. Choose the one that best suits your specific use case and coding style.

Remember, JavaScript arrays are versatile and offer various methods to manipulate and access their elements. Understanding these methods can greatly enhance your ability to work with arrays effectively.