Type Alias MonthKey

MonthKey: keyof MonthMap

🔍 Expanded Type Evaluation (Compiler API)

type MonthKey = "JAN" | "FEB" | "MAR" | "APR" | "MAY" | "JUN" | "JUL" | "AUG" | "SEP" | "OCT" | "NOV" | "DEC"

Union type of all valid 3-letter month abbreviation keys ('JAN' | 'FEB' | ... | 'DEC').