Benchmark: chunk method - MeasureThat.net

Tests:

chunk1
const arr = [1, 2, 3, 4, 5]; const chunk = (arr = [], value = 0) => { const chunkedArr = []; let acc = []; for (let index = 0; index < arr.length; index += 1) { if ((index + 1) % value === 0 || index === arr.length - 1) { acc.push(arr[index]); chunkedArr.push([...acc]); acc = []; } else { acc.push(arr[index]); } } return chunkedArr; }; chunk(arr, 2);
chunk2
const arr = [1, 2, 3, 4, 5]; const chunk = (arr, chunkSize = 1, cache = []) => { const tmp = [...arr]; if (chunkSize <= 0) return cache; while (tmp.length) cache.push(tmp.splice(0, chunkSize)); return cache; }; chunk(arr, 2);

Rendered benchmark preparation results:

Previous results

Test case name	Result
chunk1
chunk2

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36

Browser/OS: Chrome 79 on Mac OS X 10.15.1

Test name	Executions per second
chunk1	5565137.0 Ops/sec
chunk2	4635904.0 Ops/sec

chunk method (version: 0)