test_practical_async.cjs
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test_practical_async.cjs
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	// Real-world async pattern: sequential operations
	async function fetchUser(id) {
	console.log(`Fetching user ${id}...`);
	return new Promise(resolve => setTimeout(() => {
	resolve({ id, name: `User${id}` });
	}, 50));
	}

	async function fetchUserPosts(userId) {
	console.log(`Fetching posts for user ${userId}...`);
	return new Promise(resolve => setTimeout(() => {
	resolve([`Post1 by ${userId}`, `Post2 by ${userId}`]);
	}, 30));
	}

	async function getUserData(id) {
	const user = await fetchUser(id);
	console.log("Got user:", user.name);

	const posts = await fetchUserPosts(user.id);
	console.log("Got posts:", posts.length);

	return { user, posts };
	}

	// This is the common pattern - sequential async calls within one function
	getUserData(123).then(data => {
	console.log("Complete!", data.user.name, "has", data.posts.length, "posts");
	});