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Lesson 11 — Error handling in Node
Errors must not stop the server
If an error is not handled, a Node process crashes and every user loses the site. try { ... } catch (e) { ... } runs risky code and, if it throws an error, jumps to the catch block instead of crashing. e.message is the error's text.
try { JSON.parse("oops"); } catch (e) { console.log("bad JSON"); }
Why it matters: one bad request should give one error message — not take the whole server down.
Want it another way?
Task
Wrap the parse in try/catch so bad input logs "Handled: bad input" and the loop continues.
Run your code — when the output matches the task, you will see a green check. Then mark the lesson complete.
Test your knowledge
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