分享一個(gè)用于數(shù)組或者對象的排序的函數(shù)。該函數(shù)可以以任意深度的數(shù)組或者對象的值作為排序基數(shù)對數(shù)組或的元素進(jìn)行排序。
代碼如下：
/** * 排序數(shù)組或者對象 * by Jinko * date -- * @param object 數(shù)組或?qū)ο? * @param subkey 需要排序的子鍵, 該參數(shù)可以是字符串, 也可以是一個(gè)數(shù)組 * @param desc 排序方式, true:降序, false|undefined:升序 * @returns {*} 返回排序后的數(shù)組或者對象 * * 注意: 對于對象的排序, 如果使用console.log打印對象的顯示可能和排序結(jié)果不一致, * 其鍵會被瀏覽器以字母順序排序顯示,但在for循環(huán)中則為正確的排序順序 */ 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) { //數(shù)組排序 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 { //對象排序 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 用法如下：
用法1:
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": } }; //根據(jù)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('------------------'); //根據(jù)session_offline字段降序排序 data = sort_object(data, 'session_offline', true); for(var k in data) { console.log(data[k]); } 用法2:
var data = [ { "cpu": , "cpuhz": , "cpuhz_use": , }, { "cpu": , "cpuhz": , "cpuhz_use": , }, { "cpu": , "cpuhz": , "cpuhz_use": , }, { "cpu": , "cpuhz": , "cpuhz_use": , } ]; //根據(jù)cpuhz_use字段進(jìn)行排序 data = sort_object(data, 'cpuhz_use'); console.log(data); 用法3:
var data = [,,,,,,,]; //對一維數(shù)組進(jìn)行升序排序 data = sort_object(data); console.log(data); //對一維數(shù)組進(jìn)行降序排序 data = sort_object(data, null, true); console.log(data);
用法4:
var data = {'a':, 'b':, 'c':, 'd':}; //對對象進(jìn)行升序排序 data = sort_object(data); //對對象進(jìn)行降序排序 data = sort_object(data, '', true); for(var k in data) { console.log(k, ':', data[k]); } 用法5:
var data = { "l_": { "l": { "l": } }, "l_": { "l": { "l": } }, "l_": { "l": { "l": } }, "l_": { "l": { "l": } } }; //對對象元素的l下的l的值為基礎(chǔ)進(jìn)行升序排序 data = sort_object(data, ['l', 'l']); for(var k in data) { console.log(data[k].l); } 用法6:
var data = [ [ { "a": }, , ], [ { "a": }, , ], [ { "a": }, , ] ]; //對數(shù)組的元素以下標(biāo)為的元素的鍵名為a的值為基礎(chǔ)進(jìn)行升序排序 data = sort_object(data, [,'a']); for(var k = ; k<data.length; k++) { console.log(data[k]); } console.log('---------------------'); //對數(shù)組的元素以下標(biāo)為的元素的值為基礎(chǔ)進(jìn)行升序排序 data = sort_object(data, []); // 等價(jià)于 data = sort_object(data, ); for(var k = ; k<data.length; k++) { console.log(data[k]); } 以上內(nèi)容是小編給大家分享的JavaScript對象數(shù)組排序函數(shù)及六個(gè)用法的全部敘述，希望大家喜歡。
