11 lines
328 B
TypeScript
11 lines
328 B
TypeScript
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export const pipe = (...fns) => (input) =>
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fns.reduce((acc, fn) => fn(acc), input);
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export const redFn = (acc, x) => [...acc, x];
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export const mapR = (fn) => (input) =>
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input.reduce((acc, x) => [...acc, fn(x)], []);
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export const filterR = (pred) => (input) =>
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input.reduce((acc, x) => pred(x) ? [...acc, x] : acc ,[]);
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