Function getLastDefinedValue

packages/common/src/i18n/locale_data_api.ts:717–727

* Retrieves the first value that is defined in an array, going backwards from an index position. * * To avoid repeating the same data (as when the "format" and "standalone" forms are the same) * add the first value to the locale data arrays, and add other values only if they are different. * *

(data: T[], index: number)

 *
 */
function getLastDefinedValue<T>(data: T[], index: number): T {
  for (let i = index; i > -1; i--) {
    if (typeof data[i] !== 'undefined') {
      return data[i];
    }
  }
  throw new RuntimeError(
    RuntimeErrorCode.LOCALE_DATA_UNDEFINED,
    ngDevMode && 'Locale data API: locale data undefined',
  );
}

/**
 * Represents a time value with hours and minutes.