How do I multiply each member of an array by a scalar in javascript?

Question

For example, how do I achieve the following without iterating over the array?

var a = [1, 2, 3] * 5;  // a should equal [5, 10, 15]

Answer 1

You can use .map but you also have to create a new variable to throw the new values in:

var a = [1,2,3];

var b = a.map(function(x){
    return x * 5;
});

alert(b);