Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

JavaScript JavaScript Loops Working with 'for' Loops The Refactor Challenge – Duplicate Code

Wondering if this solution also makes sense?

let html = ''; let red; let green; let blue; let randomRGB; const randomValue = () => Math.floor (Math.random() * 256); const randomRGB = rgb( ${randomValue()}, ${randomValue()}, ${randomValue()} );

for (let i = 0, i < 10, i++){ red = randomValue (); green = randomValue(); blue = randomValue(); randomRGB; html += <div style="background-color: ${randomRGB}">${i}</div>; }

document.querySelector('main').innerHTML = html;

1 Answer

Steven Parker
Steven Parker
218,596 Points

For future questions, take a look at these videos about using Markdown formatting to preserve the code's appearance, and sharing a snapshot of your workspace.

But after guessing about the formatting, these issues are still apparent:

  • you can't define a variable twice (first let randomRGB; and later const randomRGB ...)
  • creating the color outside the loop will cause every created element to have the same color
  • the separators between clauses in a "for" loop must be semicolons, not commas
  • referencing a string as its own statement (randomRGB;) doesn't cause any action

TIP: A little experimentation in the workspace will help you find issues like these.