visionmedia / debug / 247

89%

Pull #543

travis-ci

introduce `debug.id` helper method

When debugging the applications that work with pools of streams
or sockets, the debug stream often comes out interleaved making it
impossible to distinguish between streams. It is a common knowledge
that unique `id`s could be assigned to each stream and be used in
logging to solve this. However, this solution is rather ad-hoc and
usually applied only during manual debugging.

This commit introduces standard function `debug.id()` that
increments the internal counter only when debugging is enabled, and
otherwise returns `undefined`.

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