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akhrszk/toMap.ts

Last active December 11, 2021 12:31
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convert Array to Map by key
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toMap.ts
const toMap = <T>(arr: T[], byId: (item: T) => string): Map<string, T> => {
const tuple = arr.reduce((acc, curr) => {
acc.push([byId(curr), curr])
return acc
}, [] as [string, T][])
return new Map(tuple)
}
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