CAT 030

CAT-030 — keys.includes? → has_key?

Severity: info • Confidence: high • Auto-fix: ❌

Description

keys.includes? → has_key? — Use has_key? instead of .keys.includes? to check key existence without allocating an array.

Bad code

hash.keys.includes?(:foo)

Benchmark

Note

See bench results at bench/cat-030/