Feb 7, 2011 · document.contactform.name.value is actually referring to the "name" attribute of the contact form, not the form element named "name". Either rename your field to something else, …

Jul 30, 2020 · Today, we’re mentioning 6 reasons that might cause the built-in validation to not work. 1. The Form Tag has “novalidate” Attribute. 2. Required Attribute Validation doesn’t …

HTML form validation can be done by JavaScript. If a form field (fname) is empty, this function alerts a message, and returns false, to prevent the form from being submitted: JavaScript …

Jun 12, 2024 · However, complex form validation logic can sometimes lead to unexpected issues. In this post, we'll explore some common form validation problems and their solutions, as well …

If you want to run some JS code upon clicking of the submit button then your javascript method should return true or false based on the form validation. HTMLFormElement provides …

Jan 29, 2019 · When the validation fails, the form still attempts to submit. That’s because it’s trying to do the default action for a form. You need to tell the form to stop attempting to do the …

Jun 5, 2021 · javascript.submit not working, this problem lies in the validate form method itself, specifically in the else block. You're returning false before the alert call. Swap the two calls …

Oct 14, 2022 · form.validate () should return true or false depending on whether the form passes validation. The trick is that it does so in the form of a promise, if you examine the log in your …

Mar 15, 2017 · Your javascript validation function is never returning false, because content is never equal to "", content is nowhere set so it will be undefined, so the form keeps submitting …

Mar 21, 2025 · JavaScript form validation is a powerful tool that can help alleviate these challenges and improve form submission. By using JavaScript, you can: * Check for required …