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Purge event handlers from a DOM element

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Memory leakage in IE6/7 if the event handlers are not purged before deleting an element.

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  1. Object.protoype.purge = function purge(d) {
  2.     var a = d.attributes, i, l, n;
  3.     if (a) {
  4.         l = a.length;
  5.         for (i = 0; i < l; i += 1) {
  6.             n = a[i].name;
  7.             if (typeof d[n] === 'function') {
  8.                 d[n] = null;
  9.             }
  10.         }
  11.     }
  12.     a = d.childNodes;
  13.     if (a) {
  14.         l = a.length;
  15.         for (i = 0; i < l; i += 1) {
  16.             purge(d.childNodes[i]);
  17.         }
  18.     }
  19. }

URL: http://javascript.crockford.com/memory/leak.html

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