首頁猿問 js 根據(jù)日期對數(shù)組重新分組

js 根據(jù)日期對數(shù)組重新分組

JavaScript

12345678_0001 2019-05-14 15:11:03

原數(shù)據(jù)：vardata=[{"name":"小明","age":"4","birthday":"5-1"},{"name":"小黃","age":"4","birthday":"5-1"},{"name":"小紅","age":"4","birthday":"5-3"},]希望整理后得到：varnewArr=[{"birthday":"5-1","detailList":"[{'name':'小明','age':'4'},{'name':'小黃','age':'4'}]"},{"birthday":"5-3","detailList":"[{'name':'小紅','age':'4'}]"}];我的思路；data數(shù)組第0項直接push（birthday+detailList）整個到新數(shù)組newArr，但從第1項就要開始去newArr比較birthday，如果birthday相同，就只用push（detailList），如果不同就push{birthday+detailList}遇到問題：重復(fù)打印了一些數(shù)據(jù)我的代碼：`vardata=[{"name":"小明","age":"4","birthday":"5-1"},{"name":"小黃","age":"4","birthday":"5-1"},{"name":"小紅","age":"4","birthday":"5-3"},]//[希望得到]//varnewArr=[//{//"birthday":"5-1",//"detailList":"[{'name':'小明','age':'4'},{'name':'小黃','age':'4'}]"http://},//{//"birthday":"5-3",//"detailList":"[{'name':'小紅','age':'4'}]"http://}//];vararr=[];//存放新數(shù)組for(vari=0;i

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TA貢獻1821條經(jīng)驗獲得超5個贊

下面這段代碼修改如下：//第1個就要開始找新數(shù)組arr相同的日期else{varindex=-1;//通過for循環(huán)查找indexfor(vark=0;kif(resBirthday==arr[k].birthday){index=k;break;}}if(index===-1){//沒有找到arr.push(valItem);}else{//找到了arr[k].detailList.push(valDetailList);}}