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POBest Refactor to Handle Multiple jQuery Email Field Form Validation
 

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  1. POBest Refactor to Handle Multiple jQuery Email Field Form Validation
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    <p>What is the best way to refactor the attached code to accommodate multiple email addresses?</p> <p>The attached HTML/jQuery is complete and works for the first email address. I can setup the other two by copy/pasting and changing the code. But I would like to just refactor the existing code to handle multiple email address fields.</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;script src="includes/jquery/jquery-1.2.6.min.js" type="text/javascript"&gt;&lt;/script&gt; &lt;script language="javascript"&gt; $(document).ready(function() { var validateUsername = $('#Email_Address_Status_Icon_1'); $('#Email_Address_1').keyup(function() { var t = this; if (this.value != this.lastValue) { if (this.timer) clearTimeout(this.timer); validateUsername.removeClass('error').html('Validating Email'); this.timer = setTimeout(function() { if (IsEmail(t.value)) { validateUsername.html('Valid Email'); } else { validateUsername.html('Not a valid Email'); }; }, 200); this.lastValue = this.value; } }); }); function IsEmail(email) { var regex = /^([a-zA-Z0-9_\.\-\+])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/; if (regex.test(email)) return true; else return false; } &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;div&gt; &lt;label for="Email_Address_1"&gt;Friend #1&lt;/label&gt;&lt;/div&gt; &lt;input type="text" ID="Email_Address_1"&gt; &lt;span id="Email_Address_Status_Icon_1"&gt;&lt;/span&gt; &lt;/div&gt; &lt;div&gt; &lt;label for="Email_Address_2"&gt;Friend #2&lt;/label&gt;&lt;/div&gt; &lt;input type="text" id="Email_Address_2"&gt; &lt;span id="Email_Address_Status_Icon_2"&gt;&lt;/span&gt; &lt;/div&gt; &lt;div&gt; &lt;label for="Email_Address_3"&gt;Friend #3&lt;/label&gt;&lt;/div&gt; &lt;input type="text" id="Email_Address_3"&gt; &lt;span id="Email_Address_Status_Icon_3"&gt;&lt;/span&gt; &lt;/div&gt; &lt;/form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>
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