Validating forms
Stop bad input before it gets anywhere: HTML rules like required and minlength, your own checks in JavaScript, and error messages people can see and hear.
- The skill
- Check form input and show error messages everyone can see and hear.
- You make
- A sign-up form with clear errors and a gamer tag picker.
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Builds on 22 Forms: reading what people type. Free to try: Web Foundations and the playground.
Passed
You can now
Step 1 of 7
exercise_1.html
You've reached the good stuff.
4 exercises in this lesson, checked as you type. Premium opens every lesson after Foundations, in all four courses.
HTML, CSS and JavaScript