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DanielBaulig/grab.ts

Last active May 10, 2024 21:09
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grab utility function
Raw
grab.ts
// Grabs a given list of properties from an
// object and returns a new "shrunk" object
// with just those properties while preserving
// correct typing.
function grab<
O extends { [x in A[number]]: unknown },
const A extends string[]
>(o: O, properties: A): {
[x in A[number]]: typeof o[x]
} {
return Object.fromEntries(
Object.entries(o).filter(([k, ]) => properties.includes(k))
) as O;
}
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