jQuery.type()
Categories: Utilities
jQuery.type( obj )Returns: String
Description: Determine the internal JavaScript [[Class]] of an object.
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jQuery.type( obj )
version added: 1.0obj Object to get the internal JavaScript [[Class]] of.
A number of techniques are used to determine the exact return value for an object. The [[Class]] is determined as follows:
- If the object is undefined or null, then "undefined" or "null" is returned accordingly.
- jQuery.type(undefined) === "undefined"
- jQuery.type() === "undefined"
- jQuery.type(window.notDefined) === "undefined"
- jQuery.type(null) === "null"
- If the object has an internal [[Class]] equivalent to one of the browser's built-in objects, the associated name is returned. (More details about this technique.)
- jQuery.type(true) === "boolean"
- jQuery.type(3) === "number"
- jQuery.type("test") === "string"
- jQuery.type(function(){}) === "function"
- jQuery.type([]) === "array"
- jQuery.type(new Date()) === "date"
- jQuery.type(/test/) === "regexp"
- Everything else returns "object" as its type.
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Find out if the parameter is a RegExp.
HTML:
Is it a RegExp? <b></b>
Code:
$("b").append( "" + jQuery.type(/test/) );