how to take item from beginning of list javascript code example

Example 1: remove first element of array javascript

var arr = [1, 2, 3, 4]; 
var theRemovedElement = arr.shift(); // theRemovedElement == 1
console.log(arr); // [2, 3, 4]

Example 2: remove first element of array javascript

var fruits = ["Banana", "Orange", "Apple", "Mango"]
fruits.shift()