JS实现HTML表格排序功能

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var tableSort = function(){   this.initialize.apply(this,arguments); } tableSort.prototype = {   initialize : function(tableId,clickRow,startRow,endRow,classUp,classDown,selectClass){     this.Table = document.getElementById(tableId);     this.rows = this.Table.rows;//所有行     this.Tags = this.rows[clickRow-1].cells;//标签td     this.up = classUp;     this.down = classDown;     this.startRow = startRow;     this.selectClass = selectClass;     this.endRow = (endRow == 999? this.rows.length : endRow);     this.T2Arr = this._td2Array();//所有受影响的td的二维数组     this.setShow();   },   //设置标签切换   setShow:function(){     var defaultClass = this.Tags[0].className;     for(var Tag ,i=0;Tag = this.Tags[i];i++){       Tag.index = i;       addEventListener(Tag ,'click', Bind(Tag,statu));     }     var _this =this;     var turn = 0;     function statu(){       for(var i=0;i<_this.Tags.length;i++){         _this.Tags[i].className = defaultClass;       }       if(turn==0){         addClass(this,_this.down)         _this.startArray(0,this.index);         turn=1;       }else{         addClass(this,_this.up)         _this.startArray(1,this.index);         turn=0;       }     }   },   //设置选中列样式   colClassSet:function(num,cla){     //得到关联到的td     for(var i= (this.startRow-1);i<(this.endRow);i++){       for(var n=0;n<this.rows[i].cells.length;n++){         removeClass(this.rows[i].cells[n],cla);       }       addClass(this.rows[i].cells[num],cla);     }   },   //开始排序 num 根据第几列排序 aord 逆序还是顺序   startArray:function(aord,num){     var afterSort = this.sortMethod(this.T2Arr,aord,num);//排序后的二维数组传到排序方法中去     this.array2Td(num,afterSort);//输出   },   //将受影响的行和列转换成二维数组   _td2Array:function(){     var arr=[];       for(var i=(this.startRow-1),l=0;i<(this.endRow);i++,l++){         arr[l]=[];         for(var n=0;n<this.rows[i].cells.length;n++){           arr[l].push(this.rows[i].cells[n].innerHTML);         }       }     return arr;   },   //根据排序后的二维数组来输出相应的行和列的 innerHTML   array2Td:function(num,arr){     this.colClassSet(num,this.selectClass);     for(var i= (this.startRow-1),l=0;i<(this.endRow);i++,l++){       for(var n=0;n<this.Tags.length;n++){         this.rows[i].cells[n].innerHTML = arr[l][n];       }     }   },   //传进来一个二维数组，根据二维数组的子项中的w项排序，再返回排序后的二维数组   sortMethod:function(arr,aord,w){     arr.sort(function(a,b){       x = killHTML(a[w]);       y = killHTML(b[w]);       x = x.replace(/,/g,'');       y = y.replace(/,/g,'');       switch (isNaN(x)){       case false:       return Number(x) - Number(y);       break;       case true:       return x.localeCompare(y);       break;       }     });     arr = aord==0?arr:arr.reverse();     return arr;   } } /*-----------------------------------*/ function addEventListener(o,type,fn){   if(o.attachEvent){    o.attachEvent('on'+type,fn);  }else if(o.addEventListener){    o.addEventListener(type,fn,false);  }else{    o['on'+type] = fn;  } } function hasClass(element, className) {   var reg = new RegExp('(/s|^)'+className+'(/s|$)');   return element.className.match(reg); } function addClass(element, className) {   if (!this.hasClass(element, className)) {     element.className += " "+className;   } } function removeClass(element, className) {   if (hasClass(element, className)) {     var reg = new RegExp('(/s|^)'+className+'(/s|$)');     element.className = element.className.replace(reg,' ');   } } var Bind = function(object, fun) {   return function() {     return fun.apply(object, arguments);   } } //去掉所有的html标记 function killHTML(str){   return str.replace(/<[^>]+>/g,""); } //------------------------------------------------ //tableid 第几行是标签行，从第几行开始排序，第几行结束排序(999表示最后) 升序标签样式，降序标签样式 选中列样式 //注意标签行的class应该是一致的 var ex1 = new tableSort('table',1,2,999,'up','down','hov');