What are the different types of errors in Express.js?
An example of an AI chatbot conversation about error types in Express.js.
What are the different types of errors in Express.js?
In Express.js, errors can be categorized into several types: 1. Syntax Errors, 2. Validation Errors, 3. Runtime Errors, 4. HTTP Errors, and 5. Custom Errors.
Can you explain what a validation error is?
A validation error occurs when the input data does not meet the defined criteria, such as missing required fields or incorrect data types.
How can I handle these errors in my Express app?
You can handle errors in Express by using middleware functions. You can define an error-handling middleware that takes four arguments: err, req, res, and next.
What is the difference between HTTP errors and custom errors?
HTTP errors are standard response codes like 404 or 500, while custom errors are user-defined errors that can carry specific messages or codes.
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