constarr=[{id:1,name:"小明",age:18,dreid:50},{id:2,name:"大熱",age:18,dreid:52},{id:4,name:"婦女會(huì)計(jì)",age:18,dreid:51},{id:3,name:"千萬(wàn)",age:18,dreid:53},{id:1,name:"小強(qiáng)",age:18,dreid:51},{id:3,name:"千的",age:18,dreid:50},{id:2,name:"大巴",age:18,dreid:53},{id:4,name:"婦女放假",age:18,dreid:52},]我要把id相等的放在一個(gè)數(shù)組，dreid相等的放在一個(gè)數(shù)組變?yōu)檫@樣的，數(shù)組的長(zhǎng)度是不同id的長(zhǎng)度letarr=[{dreid:50,//dreid相等的都放在listDreid數(shù)組中l(wèi)istDreid:[{id:1,name:"小明",age:18,dreid:50},{id:3,name:"千的",age:18,dreid:50},],id:1,//id相等的放在listId數(shù)組中l(wèi)istId:[{id:1,name:"小明",age:18,dreid:50},{id:1,name:"小強(qiáng)",age:18,dreid:51},]},{dreid:51,//dreid相等的都放在listDreid數(shù)組中l(wèi)istDreid:[{id:4,name:"婦女會(huì)計(jì)",age:18,dreid:51},{id:1,name:"小強(qiáng)",age:18,dreid:51},],id:2,//id相等的放在listId數(shù)組中l(wèi)istId:[{id:2,name:"大熱",age:18,dreid:52},{id:2,name:"大巴",age:18,dreid:53},]},{dreid:52,//dreid相等的都放在listDreid數(shù)組中l(wèi)istDreid:[{id:2,name:"大熱",age:18,dreid:52},{id:4,name:"婦女放假",age:18,dreid:52}],id:3,//id相等的放在listId數(shù)組中l(wèi)istId:[{id:3,name:"千萬(wàn)",age:18,dreid:53},{id:3,name:"千的",age:18,dreid:50},]},{dreid:53,//dreid相等的都放在listDreid數(shù)組中l(wèi)istDreid:[{id:3,name:"千萬(wàn)",age:18,dreid:53},{d:2,name:"大巴",age:18,dreid:53}],id:4,//id相等的放在listId數(shù)組中l(wèi)istId:[{id:4,name:"婦女會(huì)計(jì)",age:18,dreid:51},{id:4,name:"婦女放假",age:18,dreid:52},]}];這個(gè)怎么實(shí)現(xiàn)呢？