Method use

packages/fresh/src/app.ts:206–224

(
    pathOrMiddleware: string | MaybeLazyMiddleware<State>,
    ...middlewares: MaybeLazyMiddleware<State>[]
  )

  use(...middleware: MaybeLazyMiddleware<State>[]): this;
  use(path: string, ...middleware: MaybeLazyMiddleware<State>[]): this;
  use(
    pathOrMiddleware: string | MaybeLazyMiddleware<State>,
    ...middlewares: MaybeLazyMiddleware<State>[]
  ): this {
    let pattern: string;
    let fns: MaybeLazyMiddleware<State>[];
    if (typeof pathOrMiddleware === "string") {
      pattern = pathOrMiddleware;
      fns = middlewares!;
    } else {
      pattern = "*";
      middlewares.unshift(pathOrMiddleware);
      fns = middlewares;
    }

    this.#commands.push(newMiddlewareCmd(pattern, fns, true));

    return this;
  }

  /**
   * Set the app's 404 error handler. Can be a {@linkcode Route} or a {@linkcode Middleware}.