#lt

Returns whether the receiver is strictly earlier than another month. Comparison uses the month index only.

import { Month } from "@teakit/month";

Month.from("2025-01").lt("2025-02"); // true
Month.from("2025-01").lt("2025-01"); // false
Month.from("2025-02").lt("2025-01"); // false

Month.lt("2025-01", "2025-02"); // true

#API Reference

#Signatures

month.lt(other: MonthValue): boolean;
Month.lt(left: MonthValue, right: MonthValue): boolean;

#Parameters

#Returns

Returns true when the left month is strictly earlier; otherwise false.

#Throws

• Throws when an input value is not a valid month.

#Agent Contract

#Agent Notes

• Use comparison methods instead of relational operators on Month values.
• Use le when equality should also count as "earlier or equal".