Created
September 2, 2011 14:34
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Use jQuery to check if certain form fields have a value before submitting the form.
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| <!DOCTYPE html> | |
| <head> | |
| <meta http-equiv="Content-type" content="text/html; charset=utf-8"> | |
| <title>Validation</title> | |
| <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> | |
| </head> | |
| <body> | |
| <div class="error"> | |
| Please fill in all required field and submit the form again: | |
| <ul> | |
| <li>First Name</li> | |
| <li>Last Name</li> | |
| <li>Email</li> | |
| <li>Phone</li> | |
| </ul> | |
| </div> | |
| <form action="" method="get" accept-charset="utf-8"> | |
| Required: | |
| <br/> | |
| 1 <input type="text" name="a" value="" id="a" class="required"> | |
| <br/> | |
| 2 <input type="text" name="b" value="" id="b" class="required"> | |
| <br/> | |
| 3 <input type="text" name="c" value="" id="c" class="required"> | |
| <p><input type="submit" class="submit" value="Continue →"></p> | |
| </form> | |
| <script type="text/javascript" charset="utf-8"> | |
| $(document).ready(function() { | |
| $('.error').hide(); | |
| $('.submit').click(function(event) { | |
| $('.required').each(function (i, el) { | |
| var data = $(el).val(); | |
| // console.log(i + ': ' + data); | |
| var len = data.length; | |
| if (len<1) { | |
| $('.error').show(); | |
| $('html, body').animate({scrollTop:0}, 'slow'); | |
| event.preventDefault(); | |
| return; | |
| } | |
| }); | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| <html> |
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