IE ã§ã¯ element.uniqueID ã¨ããã®ãããã ããã¯ãè¦ç´ ã«åºæã®çªå·ãä»ãããã®ã ã ãããçµæ§ä¾¿å©ã§ã var seen = {}; for (var i = 0; i < elemenets.length; i ++) { if (seen[elements[i].uniqueID]) elements.splice(i, 1); else seen[elements[i].uniqueID] = true; } ã¿ãããªæãã§ã使ããã¨ãã§ããã ä»ã®ãã©ã¦ã¶ ä»ã®ãã©ã¦ã¶ã«ã¯ããããªãã®ã§ãçµæ§ä¸ä¾¿ã ã§ã getter ã§åºæ¥ããããã£ã¦æã£ã¦ã°ã°ã£ã¦ã¿ããã Dean Edwards ãããããä½ã£ã¦ããããã http://dean.edwards.name/moz-behaviors/src/ HTMLElement.prototype.__define
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