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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

Browser: Firefox 68

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Nullish coalescing (??)	32094672.0 Ops/sec
Logical OR (\|\|)	28184232.0 Ops/sec
Nullish coalescing (??) [short-circuit]	660594752.0 Ops/sec
Logical OR (\|\|) [short-circuit]	686545792.0 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;