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DoctorDerek/Should You Use .includes or .filter to Check if An Array Contains an Item?.tsv

Last active March 24, 2023 22:04
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Should You Use .includes or .filter to Check if An Array Contains an Item?.tsv
Array size: 10 items 1,000 items 100,000 items 1,000,000 items
.includes() Fastest Fastest 47.07% slower 46.77% slower
.filter() 97.16% slower 99.99% slower 97.69% slower 97.66% slower
.some() 84.81% slower 99.98% slower 95.11% slower 95.01% slower
for loop 84.2% slower 99.62% slower Fastest Fastest
.find() 85.74% slower 99.98% slower 95.19% slower 95.06% slower
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JSBench.me test cases: https://jsbench.me/qmkm3wp74g/1
Read the article on Medium: https://medium.com/p/1a8365dfc363

@DoctorDerek
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Chrome Version 88.0.4324.190 (Official Build) (64-bit), Windows 10

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Spreadsheet https://docs.google.com/spreadsheets/d/1Csy-hPQnmExg3RyfHtbl4lEhr5kce3i3TS5Rv1oncr0/edit#gid=0
Chart at Vimse https://my.visme.co/view/768q3ww7-should-you-use-includes-or-filter-to-check-if-an-array-contains-an-item

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