Run results for: Nullish coalescing (??) vs logical OR (||)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:82.0) Gecko/20100101 Firefox/82.0

Browser: Firefox 82

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Nullish coalescing (??)	48756340.0 Ops/sec
Logical OR (\|\|)	48898830.0 Ops/sec
Nullish coalescing (??) [short-circuit]	1033361000.0 Ops/sec
Logical OR (\|\|) [short-circuit]	1016308000.0 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;