js--table操作
table排序
function sort() { var items = document.getElementById("items"); for(var i=1,length=items.cells.length;i<length;i++){ items.cells[i].index = i; items.cells[i].onclick = function(){ console.time("hello"); var function_id = this.getAttribute("id"); if (function_id.indexOf("sort_") !== -1) { function_id = function_id.substr(5); }; var elements = window.table.getElementsByClassName(function_id,"td"); var oTR = []; for (var i=0,length=elements.length;i<length;i++) { var tmp_td = {}; tmp_td.dom = elements[i]; tmp_td.num = elements[i].innerHTML || 0; oTR[oTR.length] = tmp_td; }; if(this.index == window.sort_index){ //表示已经排序过了,只需要将其反序排列即可 oTR.reverse(); }else{ oTR.sort(function(a, b) { return a.num - b.num }); } var fragment = document.createDocumentFragment(); for (var i=0;i<length;i++) { fragment.appendChild(oTR[i].dom.parentNode); }; window.sort_index = this.index; window.table.appendChild(fragment); console.timeEnd("hello"); } } }