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[英]How to filter in an array of objects by filter object in Javascript?
[英]How to filter an array of objects by the object's key in Javascript
我為此苦苦掙扎。 我有一個對象數組,我想按鍵過濾它,這意味着如果數組有兩個帶有某個鍵的對象,我只需要保留最后一個對象。
const mockdata = [
{
id: null,
visibility: 'true',
},
{
id: null,
visibility: 'true',
},
{
id: null,
visibility: 'true',
},
{
status: null,
visibility: 'thid',
},
];
看起來像:
const mockdata = [
{
id: null,
visibility: 'true',
},
{
status: null,
visibility: 'false',
},
];
let mockdata = [
{
id: null,
visibility: 'true',
},
{
id: null,
visibility: 'true',
},
{
id: null,
visibility: 'true',
},
{
status: null,
visibility: 'thid',
},
];
mockdata = mockdata.filter((data, index, self) =>
index === self.findIndex((t) => (
t.id === data.id && t.visibility === data.visibility && t.status === data.status
))
)
在過濾時,我正在使用 Array.findIndex 檢查索引,它返回與條件匹配的第一個項目的索引,因此不計算非唯一值
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