Run results for: Concat vs Push vs Spread Benchmark - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36

Browser: Chrome 108

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Spread	197438.7 Ops/sec
Concat	639807.2 Ops/sec
Push	310916.7 Ops/sec

Tests:

Spread
const a = new Array(1e3).fill(99); const b = [1,2,3, ...a];
Concat
const a = new Array(1e3).fill(99); const b = [1,2,3].concat(a);
Push
const a = new Array(1e3).fill(99); const b = [1,2,3]; b.push(...a);

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