Function getExtension

src/diff-parser.ts:12–15

(filename: string, language: string)

}

function getExtension(filename: string, language: string): string {
  const filenameParts = filename.split('.');
  return filenameParts.length > 1 ? filenameParts[filenameParts.length - 1] : language;
}

function startsWithAny(str: string, prefixes: string[]): boolean {
  return prefixes.reduce<boolean>((startsWith, prefix) => startsWith || str.startsWith(prefix), false);