jQuery detects the data type of the return value_jquery

In the code, the data type of the return value must be clearly known to perform correct calculations, or the type of a variable is required. Here is an introduction to how to detect the data type of the return value. The code example is as follows:

<style type="text/css">
div
{
 width:200px;
 height:100px;
 background-color:#660;
} 
</style>

<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>
<script type="text/javascript">
$(document).ready(function(){
 var width=$("div").css("width");
 alert(jQuery.type(width));
})
</script>

 <div></div>

As you can see from the above code, jQuery.type() can detect data types.

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