摘要:
原始代码:1 var list = document.getElementById("myList");2 for (var i = 0; i < 10; i++) {3 var item = document.createElement("li");4 list.appendChild(item);5 item.appendChild(document.createTextNode("Item" + i));6 }使用文档碎片(fragment)后的代码1 var list = document.getElementById( 阅读全文
摘要:
1 //credit: Speed Up Your Site (New Riders, 2003) 2 var iterations = Math.floor(value.length / 8); 3 var leftover = value.length % 8; 4 var i = 0; 5 6 if (leftover > 0) { 7 do { 8 process(values[i++]); 9 } while (--leftover > 0);10 }11 do {12 process(value[i++]);13 process(... 阅读全文