首頁猿問 javascript 刪除對象重復(fù)元素

javascript 刪除對象重復(fù)元素

JavaScript

阿晨1998 2019-04-10 20:48:00

一個json數(shù)組，根據(jù)日期來對應(yīng)篩檢屬性publishtime為發(fā)布日期，循環(huán)的時候希望創(chuàng)建一個數(shù)組publishtime只出現(xiàn)一次的值后面如果重復(fù)都不出現(xiàn)，比如May.13現(xiàn)在出現(xiàn)3次，那要實現(xiàn)以后就是只有第一次出現(xiàn)May.13的時候保留這個字段其他全部刪除[{"length":"02:50","channel":"笑點集裝箱","vid":"1a665661c9bfdf9","title":"如果有一天siri控制了人類…","gender":0,"image":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/1eb46ae2ec8bcc1baad174c11...","avator":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/46755e0014e5a74babae13cee...","click":42219,"chid":"21ddc47f57e79f2","publishtime":"Now"},{"length":"01:01","channel":"冉冉是Vimeo的搬運工","vid":"1bfef4c4ccae113","title":"如果你還沒有吃夜宵，看看這支片","gender":2,"image":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/d9b2a7b2a1f402eafcfe2464c...","avator":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/cf782ac9cd01dd9fe5b62285f...","click":421,"chid":"9eb01af2093606e","publishtime":"May.13"},{"length":"01:23","channel":"為了報仇看電影","vid":"e0621d6ece5c448","title":"復(fù)仇者聯(lián)盟的生活聚會里都在玩些什么","gender":2,"image":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/7be260d5edda9f11f268b75d7...","avator":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/51c9acd51dce33e06730bb172...","click":90,"chid":"85b8379357b2e16","publishtime":"May.13"},{"length":"03:53","channel":"道理要從街上學(xué)","vid":"15a6623fb5a5d4b","title":"這3個學(xué)生對流浪漢做的事感動了1千萬人","gender":0,"image":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/ff305c1bd0761c87e2c9105f0...","avator":"http://7xiqwt.com2.z0.glb.qiniucdn.com/image/6cd7be40224688f9e2412a7b5...","click":19665279,"chid":"3a8048d007fa98e","publishtime":"May.13"}]

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2 回答

波斯汪

TA貢獻1811條經(jīng)驗獲得超4個贊

(functionaa(list){for(vari=0,len=list.length;ifor(varj=i+1;jif(list[i].publishtime===list[j].publishtime){list.splice(j,1);j--;len--;}}}})(list);我寫了一個，不知道是否完全符合你的要求，試一下吧，第一次評論，吼吼好緊張，別噴我～～

反對回復(fù) 2019-04-10

GCT1015

TA貢獻1827條經(jīng)驗獲得超4個贊

我也來一發(fā)：functionfilter(target){varresult=[];result.push(target.shift());for(vari=0;iif(result.length>i&&result[i].publishtime!=target[i].publishtime){result.push(target[i]);}}returnresult;}filter(array);