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You have several errors there. first you have to return value from the function in the <form name="ff1" method="post" onsubmit="validateForm();"> <input type="text" name="email" id="fremail" placeholder="your@email.com" HTML form validation can be done by JavaScript. <form name="myForm" action="/action_page_post.php" onsubmit="return validateForm()" method="post"> 17 Sep 2013 The easiest way to prevent the default behavior of the form submit is to have your function return false. This will stop the form from submitting. This blog emphasize to onsubmit event in JavaScript. When a user clicks on submit button of a form, JavaScript onsubmit event will call a function. Here, we have created a simple HTML form with some fields, as user clicks submit button JavaScript code will execute. The question is pretty self-explanatory. I don't understand what the You need the return so the true/false gets passed up to the form's submit 23 May 2013 Note that "form" refers to a DOM element, this way the validation isn't . Example: Disables onsubmit validation, allowing the user to submit Give this a try @Scott When you submit the form by calling "submit()" directly, like your button is doing, the "onsubmit" handler is not called Click here to learn how to add form validation to your forms. The " onsubmit " handler is inserted inside the <form> tag, and not inside any one element, unlike Here we'll learn the methods used to validate form input, using the onSubmit event Validating Form Input · Implementing the Check | Accessing Values · Text
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