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Posted By

hERB on 09/16/09


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in_array()

 / Published in: JavaScript
 
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  1. Array.prototype.in_array = function(p_val) {
  2. 	for(var i = 0, l = this.length; i < l; i++) {
  3. 		if(this[i] == p_val) {
  4. 			return true;
  5. 		}
  6. 	}
  7. 	return false;
  8. }
  9.  
  10. // Usage
  11. var foo = ["a", "b"];
  12.  
  13. foo.in_array("a"); // true
  14. foo.in_array("c"); // false

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