Method exists

src/core/file_system.ts:558–562

(p: string, cb: (exists: boolean) => void)

    throw new ApiError(ErrorCode.ENOTSUP);
  }
  public exists(p: string, cb: (exists: boolean) => void): void {
    this.stat(p, null, function(err) {
      cb(!err);
    });
  }
  public existsSync(p: string): boolean {
    try {
      this.statSync(p, true);