@burglekitt/gmt/dist/zoned/parse/parseNanosecondFromZoned.js

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

import { Temporal } from "@js-temporal/polyfill";
import { isValidZonedDateTime } from "../validate/index.js";
/**
 * Return the nanosecond (0-999) from a zoned datetime string.
 *
 * - Returns zero-padded string for nanosecond.
 * - Returns "" for invalid input.
 *
 * @param value ISO zoned datetime string (e.g., "2024-03-15T14:30:45.123456789+00:00[UTC]")
 * @returns Nanosecond (000-999) or "" on invalid input
 *
 * @example parseNanosecondFromZoned("2024-03-15T14:30:45.123+00:00[UTC]") // "123"
 * @example parseNanosecondFromZoned("invalid") // ""
 */
export function parseNanosecondFromZoned(value) {
    if (!isValidZonedDateTime(value)) {
        return "";
    }
    try {
        const zonedDateTime = Temporal.ZonedDateTime.from(value);
        return (zonedDateTime.nanosecond ?? 0).toString().padStart(3, "0");
    }
    catch {
        return "";
    }
}