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Posted By

karlhorky on 07/27/10


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element check DOM jquery exists defined exist domelement


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jQuery: Check for existence of element

 / Published in: JavaScript
 

URL: http://docs.jquery.com/Frequently_Asked_Questions#How_do_I_test_whether_an_element_exists.3F

From the jQuery documentation:

You can use the length property of the jQuery collection returned by your selector.

Note: It isn't always necessary to test whether an element exists. The following code would show the item if it exists, and do nothing (no errors) if it did not:

Expand | Embed | Plain Text 
  1. if ( $('#myDiv').length ) {
  2.   alert('#myDiv exists!');
  3. }

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