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type hints galore!

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Zutatensuppe 2021-05-29 15:36:03 +02:00
parent 7b1f270587
commit 46f3fc7480
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src/common/Types.ts Normal file
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// @see https://stackoverflow.com/a/59906630/392905
type ArrayLengthMutationKeys = 'splice' | 'push' | 'pop' | 'shift' | 'unshift' | number
type ArrayItems<T extends Array<any>> = T extends Array<infer TItems> ? TItems : never
export type FixedLengthArray<T extends any[]> =
Pick<T, Exclude<keyof T, ArrayLengthMutationKeys>>
& { [Symbol.iterator]: () => IterableIterator< ArrayItems<T> > }