@burglekitt/gmt/dist/plain/validate/isValidDateTimeDurationUnit.js

Temporal-based date and time utilities with timezone support and polyfill integration

/**
 * Return true when `unit` is a valid DateTimeDurationUnit.
 *
 * - Valid units are: "years", "months", "weeks", "days", "hours", "minutes", "seconds", "milliseconds", "microseconds", "nanoseconds".
 * - Uses type assertion to narrow the type.
 *
 * @param unit candidate string
 * @returns boolean indicating validity
 *
 * @example isValidDateTimeDurationUnit("days") // true
 * @example isValidDateTimeDurationUnit("hours") // true
 * @example isValidDateTimeDurationUnit("minutes") // true
 * @example isValidDateTimeDurationUnit("invalid") // false
 */
export const isValidDateTimeDurationUnit = (unit) => {
    return (unit === "years" ||
        unit === "months" ||
        unit === "weeks" ||
        unit === "days" ||
        unit === "hours" ||
        unit === "minutes" ||
        unit === "seconds" ||
        unit === "milliseconds" ||
        unit === "microseconds" ||
        unit === "nanoseconds");
};