js封装each函数

function each(ele,callback){
   if(Object.prototype.toString.call(ele) == "[object Array]"){
      if(Object.prototype.toString.call(callback) == "[object Function]"){
        ; i < ele.length; i++){
           callback.call(ele[i],ele[i],i)
         }
      }
   }else if(Object.prototype.toString.call(ele) == "[object Object]"){
      if(Object.prototype.toString.call(callback) == "[object Function]"){
         for(var i in ele){
            callback.call(ele[i],ele[i],i)
         }
       }
   }
}