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Run results for:
Nullish coalescing (??) vs logical OR (||)
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<iframe src="https://measurethat.net/Embed?id=611599" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Browser:
Chrome 137
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Logical OR (||)
242.8M/s
Logical OR (||) [short-circuit]
219.5M/s
Nullish coalescing (??) [short-circuit]
219.4M/s
Nullish coalescing (??)
219.3M/s
View exact numbers
Test name
Executions per second
✓
Logical OR (||)
242,785,792 Ops/sec
Logical OR (||) [short-circuit]
219,453,808 Ops/sec
Nullish coalescing (??) [short-circuit]
219,385,088 Ops/sec
Nullish coalescing (??)
219,317,264 Ops/sec
Tests:
Nullish coalescing (??)
let x = null ?? undefined ?? null ?? undefined ?? null ?? undefined ?? null ?? undefined ?? null ?? undefined ?? 1;
Logical OR (||)
let x = null || undefined || null || undefined || null || undefined || null || undefined || null || undefined || 1;
Nullish coalescing (??) [short-circuit]
let x = 1 ?? undefined ?? null ?? undefined ?? null ?? undefined ?? null ?? undefined ?? null ?? undefined ?? 1;
Logical OR (||) [short-circuit]
let x = 1 || undefined || null || undefined || null || undefined || null || undefined || null || undefined || 1;