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raine/cached-read-file.js

Created September 8, 2015 13:15
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cached-read-file.js
const cachedReadFile = (function() {
const cache = new Map();
return (p) => {
if (cache.has(p)) return Promise.resolve(cache.get(p));
else return readFile(p).tap((file) => cache.set(p, file));
}
}());
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