Re-throwing exception in NodeJS and not losing stack trace

Question

How can I rethrow an error or exception in nodejs/javascript and include a custom message.

I have the following code

var json = JSON.parse(result);
         


        

Answer 1

You may want to have a look at the verror module from Joyent, which provides an easy way to wrap errors:

var originError = new Error('No such file or directory');
var err = new VError(originError, 'Failed to load configuration');
console.error(err.message);

This will print:

Failed to load configuration: No such file or directory