Question 1

How to integrate pretty-error with Express.js?

Accepted Answer

Use it as middleware in the error handler; the README shows code to log errors with pe.render(err) after skipping node files and express packages for cleaner output.

Question 2

Can pretty-error handle unhandled promise rejections?

Accepted Answer

Yes, but with caveats; for BlueBird, avoid start() and handle manually with process.on('unhandledRejection'), or use pretty-monitor for when.js, as noted in Troubleshooting.

Question 3

What's the performance impact of using pretty-error?

Accepted Answer

It adds minimal overhead by formatting errors in real-time, but for high-throughput apps, consider disabling colors with withoutColors() or using it selectively to avoid slowdowns.

Question 4

How to customize colors in pretty-error themes?

Accepted Answer

Use appendStyle() with CSS-like rules; specify colors like 'bright-white' and backgrounds, and adjust padding, as detailed in the theming section with examples.

Question 5

pretty-error vs chalk for error formatting?

Accepted Answer

pretty-error focuses on structured stack trace formatting with themes, while chalk is for general terminal styling; choose pretty-error for readable error output and chalk for simple colorized text.

Question 6

Does pretty-error work with TypeScript?

Accepted Answer

Likely yes, as it's a standard Node.js library, but the README doesn't mention TypeScript specifics, so check compatibility or use type definitions if available via DefinitelyTyped.

Question 7

How to skip node_modules in pretty-error output?

Accepted Answer

Use skipPackage() for specific packages or skipPath() for directories; for example, pe.skipNodeFiles() skips core Node.js files, and you can filter further with callbacks.

pretty-error

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