Chapter 9: Interacting with RESTful APIs

1. What will the output be in the console if we run the following code in a browser?

try {
 setInterval(() => {
  throw new Error("Oops");
 }, 1000);
} catch (ex) {
  console.log("Sorry, there is a problem", ex); 
}

We'd get a message saying that an uncaught error (Oops) has occurred. The console.log statement wouldn't be reached.

2. Assuming that post 9999 doesn't exist, what would be the output in the console if we ran the following code in a browser:

fetch("https://jsonplaceholder.typicode.com/posts/9999")
  .then(response => {
    console.log("HTTP status code", response.status);
    return response.json();
  })
  .then(data => console.log("Response body", data))
  .catch (error => console.log("Error", error));

The key thing is that an HTTP error doesn't...