Benchmark: Spread vs Iteration

Tests:

Spread
const a = { a: 1 }; const b = { b: 1, c: 2, d: 3, e: 4, f: 5, g: 6 }; const c = { ...a, ...b };
ForEach
const a = { a: 1 }; const b = { b: 1, c: 2, d: 3, e: 4, f: 5, g: 6 }; Object.entries(b).forEach(([key, value]) => { a[key] = value; });
Object.assign
const a = { a: 1 }; const b = { b: 1, c: 2, d: 3, e: 4, f: 5, g: 6 }; const c = Object.assign({}, a, b);

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36

Browser/OS: Chrome 110 on Mac OS X 10.15.7

Spread vs Iteration (version: 2)