errr
Error factory with the ability to append stack traces from previous errors, as well as appending debug params to stack traces. Great if you want one appended stack trace that defines the error at many levels of your code. This concept works wonders when
concat
concatenate multiple files
stream-read-all
Returns a promise which fulfils with the supplied stream's content
unique-concat
Concatenates two arrays, removing duplicates in the process and returns one array with unique values.