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Run results for:
Nullish coalescing (??) vs logical OR (||)
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<iframe src="https://measurethat.net/Embed?id=583989" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
one year ago
Logical OR (||)
1446.1M/s
Nullish coalescing (??) [short-circuit]
1428.6M/s
Logical OR (||) [short-circuit]
1357.3M/s
Nullish coalescing (??)
1328.1M/s
View exact numbers
Test name
Executions per second
✓
Logical OR (||)
1,446,097,408 Ops/sec
Nullish coalescing (??) [short-circuit]
1,428,572,160 Ops/sec
Logical OR (||) [short-circuit]
1,357,282,048 Ops/sec
Nullish coalescing (??)
1,328,096,512 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;