Method title

packages/svelte/src/internal/server/renderer.js:401–422

* @param {(renderer: Renderer) => void} fn

(fn)

	 * @param {(renderer: Renderer) => void} fn
	 */
	title(fn) {
		const path = this.get_path();

		/** @param {string} head */
		const close = (head) => {
			this.global.set_title(head, path);
		};

		this.child((renderer) => {
			const r = new Renderer(renderer.global, renderer);
			fn(r);

			if (renderer.global.mode === 'async') {
				return r.#collect_content_async().then((content) => {
					close(content.head);
				});
			} else {
				const content = r.#collect_content();
				close(content.head);
			}
		});
	}

	/**
	 * @param {string | (() => Promise<string>)} content