JavaScript对象数组排序函数及六个用法

 /**  * 排序数组或者对象  * by Jinko  * date --  * @param object 数组或对象  * @param subkey 需要排序的子键, 该参数可以是字符串, 也可以是一个数组  * @param desc 排序方式, true:降序, false|undefined:升序  * @returns {*} 返回排序后的数组或者对象  *  * 注意: 对于对象的排序, 如果使用console.log打印对象的显示可能和排序结果不一致,  *  其键会被浏览器以字母顺序排序显示,但在for循环中则为正确的排序顺序  */ function sort_object(object, subkey, desc) {   var is_array = false;   if(Object.prototype.toString.call(object) === '[object Array]') {     is_array = true;   }   if(is_array) {     var keys = {length:object.length};   } else {     if(typeof(Object.keys) == 'function') {       var keys = Object.keys(object);     } else{       var keys = [];       for(var key in keys) {         keys.push(key);       }     }   }   for(var i=; i<keys.length; i++) {     for(var j=i+; j<keys.length; j++) {       if(is_array) {         //数组排序         if(Object.prototype.toString.call(subkey) === '[object Array]') {           var vali = object[i];           var valj = object[j];           for(var si=; si<subkey.length; si++) {             vali = vali[ subkey[si] ];             valj = valj[ subkey[si] ];           }         } else {           if((!subkey && subkey !== ) || subkey == '' && object.sort) {             var vali = object[i];             var valj = object[j];           } else {             var vali = object[i][subkey];             var valj = object[j][subkey];           }         }         if(desc) {           if(valj > vali) {             var tmp = object[i];             object[i] = object[j];             object[j] = tmp;           }         } else {           if(valj < vali) {             var tmp = object[i];             object[i] = object[j];             object[j] = tmp;           }         }       } else {         //对象排序         var obi = object[ keys[i] ];         var obj = object[ keys[j] ];         if(Object.prototype.toString.call(subkey) === '[object Array]') {           var vali = obi;           var valj = obj;           for(var si=; si<subkey.length; si++) {             vali = vali[ subkey[si] ];             valj = valj[ subkey[si] ];           }         } else {           if((!subkey && subkey !== ) || subkey == '' && object.sort) {             var vali = obi;             var valj = obj;           } else {             var vali = obi[subkey];             var valj = obj[subkey];           }         }         if(desc) {           if(valj > vali) {             var tmp = keys[i];             keys[i] = keys[j];             keys[j] = tmp;           }         } else {           if(valj < vali) {             var tmp = keys[i];             keys[i] = keys[j];             keys[j] = tmp;           }         }       }//is!array     }   }   if(is_array) {     return object;   } else {     var sorted = {};     for(var i=; i<keys.length; i++) {       sorted[ keys[i] ] = object[ keys[i] ];     }     return sorted;   } } //sort_object 

 var data = {   "a": {     "session_offline": ,     "session_online": ,     "session_count":    },   "b": {     "session_offline": ,     "session_online": ,     "session_count":    },   "c": {     "session_offline": ,     "session_online": ,     "session_count":    },   "d": {     "session_offline": ,     "session_online": ,     "session_count":    } }; //根据session_online字段升序排序 data = sort_object(data, 'session_online'); for(var k in data) {   console.log(data[k]); } console.log('------------------'); //根据session_offline字段降序排序 data = sort_object(data, 'session_offline', true); for(var k in data) {   console.log(data[k]); } 

var data = [   {     "cpu": ,     "cpuhz": ,     "cpuhz_use": ,   },   {     "cpu": ,     "cpuhz": ,     "cpuhz_use": ,   },   {     "cpu": ,     "cpuhz": ,     "cpuhz_use": ,   },   {     "cpu": ,     "cpuhz": ,     "cpuhz_use": ,   } ]; //根据cpuhz_use字段进行排序 data = sort_object(data, 'cpuhz_use'); console.log(data); 

 var data = [,,,,,,,]; //对一维数组进行升序排序 data = sort_object(data); console.log(data); //对一维数组进行降序排序 data = sort_object(data, null, true); console.log(data); 

 var data = {'a':, 'b':, 'c':, 'd':}; //对对象进行升序排序 data = sort_object(data); //对对象进行降序排序 data = sort_object(data, '', true); for(var k in data) {   console.log(k, ':', data[k]); } 

 var data = {   "l_": {     "l": {       "l":      }   },   "l_": {     "l": {       "l":      }   },   "l_": {     "l": {       "l":      }   },   "l_": {     "l": {       "l":      }   } }; //对对象元素的l下的l的值为基础进行升序排序 data = sort_object(data, ['l', 'l']); for(var k in data) {   console.log(data[k].l); } 

var data = [   [     {       "a":      },     ,   ],   [     {       "a":      },     ,   ],   [     {       "a":      },     ,   ] ]; //对数组的元素以下标为的元素的键名为a的值为基础进行升序排序 data = sort_object(data, [,'a']); for(var k = ; k<data.length; k++) {   console.log(data[k]); } console.log('---------------------'); //对数组的元素以下标为的元素的值为基础进行升序排序 data = sort_object(data, []); // 等价于 data = sort_object(data, ); for(var k = ; k<data.length; k++) {   console.log(data[k]); }