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<h1 class="jq-clearfix">jQuery.isNumeric()</h1>
<div class="entry-meta jq-clearfix">
Categories:
<span class="category"><a href="http://api.jquery.com/category/utilities/" title="View all posts in Utilities">Utilities</a></span>
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<div id="jQuery-isNumeric1" class="entry method">
<h2 class="jq-clearfix roundTop section-title">
<span class="name">jQuery.isNumeric( value )</span> <span class="returns">Returns: <a class="return" href="http://api.jquery.com/Types/#Boolean">Boolean</a></span>
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<div class="jq-box roundBottom entry-details">
<p class="desc"><strong>Description: </strong>Determines whether its argument is a number.</p>
<ul class="signatures"><li class="signature" id="jQuery-isNumeric-value">
<h4 class="name">
<span class="versionAdded">version added: <a href="/category/version/1.7/">1.7</a></span>jQuery.isNumeric( value )</h4>
<p class="arguement"><strong>value</strong>The value to be tested.</p>
</li></ul>
<div class="longdesc"><p>The <code>$.isNumeric()</code> method checks whether its argument represents a numeric value. If so, it returns <code>true</code>. Otherwise it returns <code>false</code>. The argument can be of any type.</p></div>
<h3>Example:</h3>
<div class="entry-examples" id="entry-examples"><div id="example-0">
<h4><span class="desc">Sample return values of $.isNumeric with various inputs.</span></h4>
<pre class="prettyprint"><code class="example">
$.isNumeric("-10"); // true
$.isNumeric(16); // true
$.isNumeric(0xFF); // true
$.isNumeric("0xFF"); // true
$.isNumeric("8e5"); // true (exponential notation string)
$.isNumeric(3.1415); // true
$.isNumeric(+10); // true
$.isNumeric(0144); // true (octal integer literal)
$.isNumeric(""); // false
$.isNumeric({}); // false (empty object)
$.isNumeric(NaN); // false
$.isNumeric(null); // false
$.isNumeric(true); // false
$.isNumeric(Infinity); // false
$.isNumeric(undefined); // false
</code></pre>
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