Benchmark: 1231232112dsa - MeasureThat.net

Tests:

PUSH NAIVE
let distinctRecords = []; let distinctOutputColInBatch = []; const SIZE = 10000; for (let j = 0; j < SIZE; ++j) { distinctRecords.push({ first: Math.random().toString(), id: Math.random() }); distinctOutputColInBatch.push({ first: Math.random().toString(), id: Math.random() }); } const originalLength = distinctRecords.length; distinctRecords.length = originalLength + distinctOutputColInBatch.length; for (let i = 0; i < distinctOutputColInBatch.length; ++i) { distinctRecords[originalLength + i] = distinctOutputColInBatch[i]; } console.log(distinctRecords.length);
Concat
let distinctRecords = []; let distinctOutputColInBatch = []; const SIZE = 10000; for (let j = 0; j < SIZE; ++j) { distinctRecords.push({ first: Math.random().toString(), id: Math.random() }); distinctOutputColInBatch.push({ first: Math.random().toString(), id: Math.random() }); } distinctRecords = distinctRecords.concat(distinctOutputColInBatch); console.log(distinctRecords.length);

Rendered benchmark preparation results:

Previous results

Test case name	Result
PUSH NAIVE
Concat

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Latest run results:

Run details: (Test run date: 9 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser/OS: Chrome 114 on Mac OS X 10.15.7

Test name	Executions per second
PUSH NAIVE	208.1 Ops/sec
Concat	195.4 Ops/sec

1231232112dsa (version: 0)