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caasi/bind.ts

Created May 8, 2020 16:21
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bind.ts
type PromiseBind<A, B> = (a: Promise<A>, f: (x: Promise<A>) => Promise<B>) => Promise<B>;
type OptionBind<A, B> = (a?: A, f: (x: A) => (B | undefined)) => (B | undefined);
type ListBind<A, B> = (a: A[], f: (x: A) => B[]) => B[];
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