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 Regular Expressions in JavaScript Validating a Form Form Validation

regex testing

Now, use the test() method to test the string in text against the regular expression you just created. Remember the test() method returns a true or false value. Return the result of testing the string from the isValidHex method.

Bummer: There was an error with your code: ReferenceError: Can't find variable: hexRegEx

// Type inside this function function isValidHex(text) { let hexRegEx = /^#[a-fA-F0-9]{6}$/; }

const hex = document.getElementById("hex"); const body = document.getElementsByTagName("body")[0]; hexRegEx.test('string'); hex.addEventListener("input", e => { const text = e.target.value; const valid = isValidHex(text); if (valid) { body.style.backgroundColor = "rgb(176, 208, 168)"; } else { body.style.backgroundColor = "rgb(189, 86, 86)"; } });

1 Answer

Steven Parker
Steven Parker
231,248 Points

It must be something that doesn't show up without proper formatting. This code should pass task 1 as-is.