Question

126

How to return an array of unique objects based on the id of the object in es6?

rated 0 times [ 133] [ 7] / answers: 1 / hits: 6893 / 2 Years ago, mon, december 27, 2021, 12:00:00

    Array(96) [ {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, … ]



0: Object { id: 1, name: "PrimShal01", period: 3, … }

1: Object { id: 61, name: "TertDeep01", period: 1, … }

2: Object { id: 37, name: "SecoDeep01", period: 2, … }

3: Object { id: 49, name: "TertShal01", period: 1, … } 

4: Object { id: 13, name: "PrimDeep01", period: 3, … }

5: Object { id: 61, name: "TertDeep01", period: 1, … }

When I try the following code I only get the unique id, but I want the objects:

const uniques = [new Set(all_filter_ids.map(pos => pos.id))]

When I try the following code I get the the same as before:

const uniques = [new Set(all_filter_ids)]

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yaquelina

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answered 2 Years ago danyelletyanah · Accepted Answer

Another one solution:

const arr = [{ id: 1, name: PrimShal01, period: 3},{ id: 61, name: TertDeep01, period: 1},{ id: 37, name: SecoDeep01, period: 2},{ id: 49, name: TertShal01, period: 1},{ id: 13, name: PrimDeep01, period: 3},{ id: 61, name: TertDeep01, period: 1}]



const result = Object.values(

    arr.reduce((acc, obj) => ({ ...acc, [obj.id]: obj }), {})

);



console.log(result);

.as-console-wrapper{min-height: 100%!important; top: 0}