NoMagicNumbers [rule] v1.0.0

Numeric literals other than 0 and 1 used in logic or calculations must be named constants. 'Magic numbers' are numeric literals that appear with no explanation — the reader must guess what 86400 or 3.14159 mean in context.

Checks

• Any numeric literal other than 0, 1, -1 used in logic must be extracted to a const with a descriptive name.
• Array indices beyond 0 must be named if they carry semantic meaning (FIRST_ITEM = 0, STATUS_CODE = 2).
• Allowed exceptions: test data counts, trivial math (halving: x / 2).

Label

No magic numbers — name all non-trivial numeric literals

NoMagicNumbers [rule] v1.0.0

Numeric literals other than 0 and 1 used in logic or calculations must be named constants. 'Magic numbers' are numeric literals that appear with no explanation — the reader must guess what 86400 or 3.14159 mean in context.

Checks

• Any numeric literal other than 0, 1, -1 used in logic must be extracted to a const with a descriptive name.
• Array indices beyond 0 must be named if they carry semantic meaning (FIRST_ITEM = 0, STATUS_CODE = 2).
• Allowed exceptions: test data counts, trivial math (halving: x / 2).

Label

No magic numbers — name all non-trivial numeric literals

Relations

related: [@team/principle-readability-over-cleverness, @team/anti-pattern-god-class, @team/rule-no-default-export] see-also: [@team/principle-readability-over-cleverness]

Label

No magic numbers — name all non-trivial numeric literals

See Also

• @team/principle-readability-over-cleverness