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Run results for:
Spread first vs map first then Array.from
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36
Browser:
Chrome 136
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
11 months ago
Test name
Executions per second
Spread first then map
9.5 Ops/sec
Map first then Array.from
17.3 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
let foo = new Map(); for (let i = 0; i < 1_000_000; i++) { foo.set(i, i % 8); }
Tests:
Spread first then map
[...foo.entries()].map(([i, iMod8]) => [i, iMod8.toString()])
Map first then Array.from
Array.from(foo.entries().map(([i, iMod8]) => [i, iMod8.toString()]))