remove last entry from array in Javascript
To remove the last entry from an array in JavaScript, you can follow these steps:
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.
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.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 callingarrayName.pop()
, you can remove and retrieve the last element from the array.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.