我有一個對象數組，我想避免使用特定鍵值重復值。這是一個對象數組。 var dept = [ { "department": [ { "userName": "cds", "userId": "33", "userFirstname": "Chef", "userLastname": "Jone" }, { "userName": "asset1", "userId": "27", "userFirstname": "Asset", "userLastname": "Ann " } ], "comment": "", "doc": null},{ "department": [ { "userName": "audit1", "userId": "32", "userFirstname": "Audit", "userLastname": "Kim" }, { "userName": "cds", "userId": "33", "userFirstname": "Chef", "userLastname": "Jone" } ], "comment": "", "doc": null } ];我試圖通過 javascript 返回不重復的對象。但結果似乎不同。我可以從一個對象數組中返回值。但是，我覺得從數組數組中提取值很困難。如何分配數組的過濾器數組？任何幫助，將不勝感激。提前致謝。 function getUnique(dept, comp) { const unique = dept .map(e => e[comp]) // store the keys of the unique objects.map((e, i, final) => final.indexOf(e) === i && i)// eliminate the dead keys & store unique objects.filter(e => dept[e]).map(e => dept[e]); return unique; }return getUnique(dept,'userName');我會得到結果 [{ "department": [ { "userName": "cds", "userId": "33", "userFirstname": "Chef", "userLastname": "Jone" }, { "userName": "asset1", "userId": "27", "userFirstname": "Asset", "userLastname": "Ann " } ], "comment": "", "doc": null},{ "department": [ { "userName": "audit1", "userId": "32", "userFirstname": "Audit", "userLastname": "Kim" } ], "comment": "", "doc": null } ];然而，我得到了結果 [ {"department": [ { "userName": "cds", "userId": "33", "userFirstname": "Chef", "userLastname": "Jone" }, { "userName": "asset1", "userId": "27", "userFirstname": "Asset", "userLastname": "Ann " }],"comment": "","doc": null }]
從數組的數組中刪除重復值
catspeake
2021-06-15 17:41:17
