Function basename

packages/core/src/utils/path.ts:203–209

(path: string, ext?: string)

/** JSDoc */
export function basename(path: string, ext?: string): string {
  let f = splitPath(path)[2] || '';
  if (ext && f.slice(ext.length * -1) === ext) {
    f = f.slice(0, f.length - ext.length);
  }
  return f;
}