Function isRunnableExtension

packages/convert/src/load-runnable-file.ts:48–50

(ext: string)

 * Check if a file extension is supported for running.
 */
export function isRunnableExtension(ext: string): ext is RunnableExtension {
  return RUNNABLE_EXTENSIONS.includes(ext.toLowerCase() as RunnableExtension)
}

function unsupportedExtensionError(ext: string): LoadRunnableFileError {
  return new LoadRunnableFileError(