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Posted By

jasonseney on 04/30/09


Tagged

javascript null undefined


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jfherring
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Javascript check for undefined or null object/variable

 / Published in: JavaScript
 

Based on some comments in StackOverflow Question

Expand | Embed | Plain Text 
  1. if(typeof(foo) !== 'undefined' && foo != null) {
  2.     //you can use foo!
  3. }

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