queue shift javascript code example

Example 1: remove first element from array javascript

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

Example 2: array shift javascript

//The shift() method removes the first element from an array 
//and returns that removed element. 
//This method changes the length of the array.

const array1 = [1, 2, 3];
const firstElement = array1.shift();
console.log(array1);
// expected output: Array [2, 3]
console.log(firstElement);
// expected output: 1

Example 3: javascript move array element to front

for(var i = 0; i<$scope.notes.length;i++){
	if($scope.notes[i].is_important){
    	var imortant_note = $scope.notes.splice(i,1);
    	$scope.notes.unshift(imortant_note[0]);//push to front
	}
}