remove last 3 element using slice in javascript code example

Example 1: javascript remove last item

array.pop();

// Example
var colors = ['Yellow', 'Red', 'Blue', 'Green'];
var removedColor = colors.pop(); // Green
console.log(colors); // ['Yellow', 'Red', 'Blue']

Example 2: javascript delete second last element of array

arr.splice(arr.length - 2, 1);