JSON Fetch
A JSON response still needs HTTP and shape checks. This offline example models a response without contacting a server.
Where to run this
This example uses the JavaScript console playground. Select Run to execute it; the example does not run on this lesson page.
A practical example
const response = new Response('[{"title":"Repair club"}]');
const sessions = await response.json();
if (!Array.isArray(sessions)) throw new TypeError("Expected a list");
console.log(sessions.length);
What happens
The validated list contains one session.