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Form Validation
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| function validatesEmail(email) { | |
| var re = new RegExp ("[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?"); | |
| if (re.test(email)) { | |
| return true | |
| } | |
| else { | |
| $('#errors').append('<li>Must be a valid email address</li>'); | |
| return false | |
| } | |
| } | |
| function validatesPassword(password) { | |
| var pass = true | |
| if (/\d/.test(password) == false) { | |
| $('#errors').append('<li>Password must have at least one numeric character (0-9)</li>') | |
| pass = false | |
| } | |
| if (/[A-Z]/.test(password) == false) { | |
| $('#errors').append('<li>Password must have at least one capital letter</li>'); | |
| } | |
| if (password.length < 8) { | |
| $('#errors').append('<li>Password must be at least 8 characters long</li>') | |
| pass = false | |
| } | |
| return pass | |
| } | |
| // shorthand for $(document).ready(); | |
| $(function(){ | |
| //Your code... | |
| $('form').submit(function(event) { | |
| event.preventDefault(); | |
| $('#errors').html('<span></span>'); | |
| var email = $('input:nth-child(2)').val(); | |
| var password = $('input:nth-child(4)').val(); | |
| var email_valid = validatesEmail(email); | |
| var pass_valid = validatesPassword(password); | |
| if (email_valid && pass_valid) { | |
| $.post('#'); | |
| } | |
| }); | |
| }); |
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <link rel="stylesheet" href="main.css"> | |
| <title>Form Validation</title> | |
| </head> | |
| <body> | |
| <form name="sign_up" action="#" method="post"> | |
| <label for="email">Email</label> | |
| <input type="text" name="email" /> | |
| <label for="password">Password</label> | |
| <input type="password" name="password" /> | |
| <button type="submit">Sign Up</button> | |
| <ul id="errors"></ul> | |
| </form><body> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> | |
| <script src="form-validator.js"></script> | |
| </body> | |
| </html> |
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| ul#errors { | |
| color: red; | |
| } |
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