array remove first duplicated element javascript code example

Example 1: javascript remove first element from array

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

Example 2: javascript array delete first element

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