@burglekitt/gmt/dist/zoned/chop/chopZonedDateTime.js

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

import { Temporal } from "@js-temporal/polyfill";
import { isValidZonedDateTime } from "../validate/isValidZonedDateTime.js";
/**
 * Extracts the IANA timeZone identifier from an ISO 8601 zoned datetime string.
 *
 * - Extracts timezone id from a ZonedDateTime.
 * - Returns "" for invalid input.
 *
 * @param value ISO 8601 zoned datetime string
 * @returns IANA timeZone id (e.g. Europe/Paris) or "" for invalid
 *
 * @example chopZonedDateTime("2024-02-29T12:30:45+01:00[Europe/Paris]") // "Europe/Paris"
 * @example chopZonedDateTime("invalid") // ""
 */
export function chopZonedDateTime(value) {
    const validZonedDateTime = isValidZonedDateTime(value);
    if (!validZonedDateTime)
        return "";
    try {
        const zonedDateTime = Temporal.ZonedDateTime.from(value);
        return zonedDateTime.timeZoneId;
    }
    catch {
        return "";
    }
}