Function safeJoin

packages/core/src/utils/string.ts:69–90

(input: unknown[], delimiter?: string)

 * @returns Joined values
 */
export function safeJoin(input: unknown[], delimiter?: string): string {
  if (!Array.isArray(input)) {
    return '';
  }

  const output = [];
  // eslint-disable-next-line typescript/prefer-for-of
  for (let i = 0; i < input.length; i++) {
    const value = input[i];
    if (isPrimitive(value)) {
      output.push(String(value));
    } else if (value instanceof Error) {
      // While stringifyValue does not special-case errors, because we later handle them specifically based on the [object XXX] fallback,
      // in this method we want to render them more nicely
      output.push(value.message ? `${value.name}: ${value.message}` : value.name);
    } else {
      output.push(stringifyValue(undefined, value));
    }
  }

  return output.join(delimiter);
}

/**
 * Checks if the given value matches a regex or string