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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops The Refactor Challenge, Part 2

Posted by Nurmukhammed Duisekeyev
Nurmukhammed Duisekeyev
1,484 Points

The Refactor Challenge clarification question! 

for (var i = 0; i < 10; i += 1) {
  red = randomRGB;
  green = randomRGB;
  blue = randomRGB;
  rgbColor = 'rgb(' + red + ',' + green + ',' + blue + ')';
  html += '<div style="background-color:' + rgbColor + '"></div>';
}

In this loop, how does JavaScript generate rgb color ?

I do understand that it uses a "function random RGB" to return random color since rgb has its highest 255 value. But how does it understand that I need green, red or blue color.

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

fixed code formatting

1 Answer

Kent Åsvang
Kent Åsvang
18,823 Points
Kent Åsvang
Kent Åsvang
18,823 Points

randomRGB returns a number between 0 and 255. Both red, blue and green has the exact same value span (0 - 255), so it do not, and does not need to understand what color you are assigning it to.

Hope this helps