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11 lines
225 B
11 lines
225 B
3 years ago
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// @flow
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export default function memoize<V>(fn: string => V): string => V {
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const cache = Object.create(null)
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return (arg: string) => {
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if (cache[arg] === undefined) cache[arg] = fn(arg)
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return cache[arg]
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}
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}
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