remove last entry from array in Javascript

To remove the last entry from an array in JavaScript, you can follow these steps:

  1. Access the array: Start by accessing the array from which you want to remove the last entry. Make sure you have the reference to the array in a variable.

  2. Check the length of the array: Use the length property of the array to determine the current number of elements in the array. This will help us identify the last element.

  3. Remove the last element: To remove the last entry from the array, you can use the pop() method. This method removes the last element from an array and returns it. By calling arrayName.pop(), you can remove and retrieve the last element from the array.

  4. Update the array: If you don't need the removed element, you can simply call arrayName.pop() without assigning it to a variable. This will remove the last element from the array permanently.

Here's an example code snippet that demonstrates the above steps:

let arrayName = [1, 2, 3, 4, 5]; // Example array
console.log("Original array:", arrayName);

let lastElement = arrayName.pop(); // Remove and retrieve the last element
console.log("Removed element:", lastElement);
console.log("Updated array:", arrayName);

This code will output:

Original array: [1, 2, 3, 4, 5]
Removed element: 5
Updated array: [1, 2, 3, 4]

By following these steps, you can successfully remove the last entry from an array in JavaScript.