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improved timed chunk javascript function

/ Published in: JavaScript
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  1. //Copyright 2009 Nicholas C. Zakas. All rights reserved.
  2. //MIT Licensed
  3. function timedChunk(items, process, context, callback){
  4.     var todo = items.concat();   //create a clone of the original
  5.  
  6.     setTimeout(function(){
  7.  
  8.         var start = +new Date();
  9.  
  10.         do {
  11.              process.call(context, todo.shift());
  12.         } while (todo.length > 0 && (+new Date() - start < 50));
  13.  
  14.         if (todo.length > 0){
  15.             setTimeout(arguments.callee, 25);
  16.         } else {
  17.             callback(items);
  18.         }
  19.     }, 25);
  20. }

URL: http://www.nczonline.net/blog/2009/08/11/timed-array-processing-in-javascript/

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