JAVASCRIPT

array.unshift in javascript

//The unshift() method adds one or more elements to the beginning of an array 
//and returns the new length of the array.

const array1 = [1, 2, 3];
console.log(array1.unshift(4, 5));
// expected output: 5
console.log(array1);
// expected output: Array [4, 5, 1, 2, 3]

array_unshift

<?php
$queue = array("orange", "banana");
array_unshift($queue, "apple", "raspberry");
print_r($queue);
?>

unshift method in javascript

var name = [ "john" ];
name.unshift( "charlie" );
name.unshift( "joseph", "Jane" );
console.log(name);

//Output will be
[" joseph "," Jane ", " charlie ", " john "]

array_unshift

$cola = array("naranja", "banana");
array_unshift($cola, "manzana", "frambuesa");
print_r($cola);

Array
(
    [0] => manzana
    [1] => frambuesa
    [2] => naranja
    [3] => banana
)

javascript unshift

 let array = ["A", "B"];
 let variable = "what you want to add";

//Add the variable to the beginning of the array
 array.unshift(variable);

//===========================
 console.log(array);
//output =>
//["what you want to add" ,"A", "B"]

unshift javascript

/*The unshift() adds method elements to the beginning, and push() method 
adds elements to the end of an array.*/
let twentyThree = 'XXIII';
let romanNumerals = ['XXI', 'XXII'];

romanNumerals.unshift('XIX', 'XX');
// now equals ['XIX', 'XX', 'XXI', 'XXII']

romanNumerals.push(twentyThree);
// now equals ['XIX', 'XX', 'XXI', 'XXII', 'XXIII']

unshift()

//The unshift() method adds a new element to an array (at the beginning), and "unshifts" older elements:
const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.unshift("Lemon");
//The unshift() method returns the new array length : >> 5


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JavaScript Array unshift()

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.unshift("Lemon");

.unshift

let monTableau = ['un', 'deux','trois', 'quatre'] ;
monTableau.unshift('zero') ; 
//console.log(monTableau) ;
 
 

 let monTableau2D = [
     ['Mark' , 'jeff' , 'Bill'] , 
     ['Zuckerberg' , 'Bezos' , 'Gates']
 ] ;
 monTableau2D[1].unshift('test') ; 
 //console.log(monTableau2D) ;