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 Foundations Numbers Parsing Numbers From Strings

what is the answe correct in this challenge

i don't understand ¡¡

this challenge say this

A variable named "boxWidth" already exists with a value of "640px". Create a new variable named "numWidth" and use the "parseInt" method to extract the numeric value from boxWidth's string value.

my answer is this

var numWidth = parseInt("640", 10);

but the system say this

Sorry! That's not correct. A correct answer will use the form: var numVariable = parseInt(stringVariable, radix);

what is the radix number correct or who is the string correct

<!DOCTYPE html>
<html lang="en">
    <title>JavaScript Foundations: Parsing Numbers From Strings</title>
    <link rel="stylesheet" href="core.css">
      var boxWidth = "640px";
      var boxHeight = "480px";

    <h1>JavaScript Foundations</h1>
    <h2>Parsing Numbers From Strings</h2>
    <script src="viewer.js"></script>

1 Answer

Alex Heil
Alex Heil
53,547 Points

hey Josue Polo , you're basically hitting an error here because you added static values (640) to the parseInt method instead of using the available variable.

try it like this:

var numWidth = parseInt(boxWidth, 10);

hope that helps and have a nice day ;)

thanks for your help friend (Y)