Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Edg/87.0.664.60
Chrome 87
Windows
Desktop
4 years ago
Test name Executions per second
Nullish coalescing (??) 480776.7 Ops/sec
Logical OR (||) 468735.8 Ops/sec
Nullish coalescing (??) [short-circuit] 453323904.0 Ops/sec
Logical OR (||) [short-circuit] 452736928.0 Ops/sec
Tests:
  • Nullish coalescing (??)

    AخA
     
    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;