I need to leave in the array only objects with unique name values. Filter first unique objects. The rest must be removed. There's the array example:
var arr = [
{name: "a", value: "1"},
{name: "a", value: "2"},
{name: "b", value: "1"},
{name: "b", value: "2"},
{name: "a", value: "3"},
{name: "b", value: "3"},
{name: "a", value: "4"},
{name: "b", value: "4"},
{name: "c", value: "5"},
]
I need to get something like that:
var arr = [
{name: "a", value: "1"},
{name: "b", value: "1"},
{name: "c", value: "5"},
]
Would be grateful for the best way, using ES6 and newer
Use reduce and Object.values to only accumulate the first of any given name
var arr = [
{name: "a", value: "1"},
{name: "b", value: "1"},
{name: "a", value: "2"},
{name: "b", value: "2"},
{name: "a", value: "3"},
{name: "b", value: "3"},
{name: "a", value: "4"},
{name: "b", value: "4"},
{name: "c", value: "5"},
]
const result = Object.values(
arr.reduce((acc, i) => (acc[i.name] ??= i, acc), {})
);
console.log(result);