Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Array Iteration Methods Array Iteration Practice forEach()

Posted by Ronald Greer
.a{fill-rule:evenodd;}techdegree seal-36
Ronald Greer
Front End Web Development Techdegree Graduate 56,430 Points

Having trouble with my array

So this challenge is asking for me to turn each value in the numbers array to that same number times by ten. I keep getting errors that my code does not pass but cannot think of any other solution. if anyone can lend a hand that would be great!

app.js 
const numbers = [1,2,3,4,5,6,7,8,9,10];
let times10 = [];

// times10 should be: [10,20,30,40,50,60,70,80,90,100]
// Write your code below

numbers.forEach(number => {
  let timesby10 = (numbers * 10);
  times10.push(timesby10);
});

console.log(times10);

1 Answer

Steven Parker
Steven Parker
231,272 Points
Steven Parker
Steven Parker
231,272 Points

It's probably just a typo, "numbers" is not defined, the name of the parameter is just "number":

  let timesby10 = (number * 10);  // <- "number" (singular), not "numbers"
Ronald Greer
.a{fill-rule:evenodd;}techdegree seal-36
Ronald Greer
Front End Web Development Techdegree Graduate 56,430 Points

Ah ok, thanks Steven!