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perf: add cached version of isDir #218

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merged 4 commits into from May 11, 2019

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keithamus
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We cache isFile and readFile, but the resolve package also allows us to override the isDir function - which we can add our caching to to make performance better.

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@keithamus keithamus force-pushed the perf-add-cached-version-of-isdir branch from 2e3a623 to d786f8d Compare May 10, 2019 15:49
};
const readFileCached = cache(readFileAsync);
const isDirCached = cache(file => statAsync(file).then(stat => stat.isDirectory(), ignoreENOENT));
const isFileCached = cache(file => statAsync(file).then(stat => stat.isFile(), ignoreENOENT));
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Really nice now that I wrapped my head around it!

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@lukastaegert lukastaegert left a comment

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Thanks a lot!

@lukastaegert lukastaegert merged commit e7eef7f into master May 11, 2019
@lukastaegert lukastaegert deleted the perf-add-cached-version-of-isdir branch May 11, 2019 07:17
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2 participants