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Discussion on: Custom exceptions with JS

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Renato Ruk

Can you explain this in more detail? I guess throwing a lot of exceptions frequently may introduce performance issues, but not sure why. Is it because of the stack tracing?

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Damian Cipolat Author

Maybe the problem Is hoy don't catch the exceptoins very well.Seriously, it's the 1st time I've heard that throwing exceptions loses Performance. but I want to see how you base it, I don't say no but I am working like this on a project and we didn't lose performance

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danielpdev

Yes, you are right. It's because of the stack tracing. As it needs to build your stack trace and it walks through the call stack to collect all required information like method names, line numbers etc.