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JavaScript Node.js Basics 2017 Handling Errors in Node Using try and catch

Posted by William Ray Noble
William Ray Noble
22,190 Points

Try-Catch Node.js

Hello, I've been stuck on this one for a while (I actually went ahead and finished the rest of the class) but I can't figure out how to answer this question. I think try...catch is supposed to go inside a function, right? What kind of function do they want us to build in this challenge? TIA

app.js 
const jsonString = 'This is not a JSON String';
const jsonObject = JSON.parse(jsonString);

1 Answer

Ross King
Ross King
20,704 Points

Hi William Ray Noble ,

Try catches are usually used within functions but don't have to be.

With Node.js you can import/require modules so some scripts (modules) may be short and not even have functions.

I think you're over complicating what they are asking. Just a basic try catch as is. Below is the answer if you are unsure.

const jsonString = 'This is not a JSON String';

try {
  const jsonObject = JSON.parse(jsonString);
} catch(error) {
  console.error(error.message);
}