Question

How to adds new elements to the end of an array, and returns the new length in JavaScript

Answer 1

var numbers = [9, 25, 100, 81];
numbers.push(225);
document.write(numbers);


/*

run:

9,25,100,81,225 

*/

 

70+ SQL courses for beginners and professionals

Answer 2

var numbers = [9, 25, 100, 81];
var len = numbers.push(225);

document.write(len + "<br />");
document.write(numbers);


/*

run:

5
9,25,100,81,225 

*/

 

70+ SQL courses for beginners and professionals