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Posted By

wizard04 on 08/13/08


Tagged

javascript array


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Array.prune

 / Published in: JavaScript
 
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  1. //removes a section of the array, returning what's left; does not affect the original array
  2. //(essentially the opposite of Array.slice)
  3. //example:
  4. //	var x = ['a', 'b', 'c', 'd'];
  5. //	var y = x.prune(1,3);
  6. //	alert(x);	//['a', 'b', 'c', 'd']
  7. //	alert(y);	//['a', 'd']
  8. //end argument is optional
  9. Array.prototype.prune = function(start, end)
  10. {
  11. 	var result = this.slice(0, start);
  12. 	if(!isNaN(end)) result.concat(this.slice(end));
  13. 	return result;
  14. }

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