randomly genaret color in js

1var randomColor = '#'+ Math.floor(Math.random() * 19777215).toString(16);

1var randomColor = Math.floor(Math.random()*16777215).toString(16);

1function get_random_color() 
2{
3    var color = "";
4    for(var i = 0; i < 3; i++) {
5        var sub = Math.floor(Math.random() * 256).toString(16);
6        color += (sub.length == 1 ? "0" + sub : sub);
7    }
8    return "#" + color;
9}
10
11function get_rand_color()
12{
13    var color = Math.floor(Math.random() * Math.pow(256, 3)).toString(16);
14    while(color.length < 6) {
15        color = "0" + color;
16    }
17    return "#" + color;
18}
19