This adds timed sections, similar to console.time() and console.timeEnd().

I understand completely if this isn't something you guys want added. However, it should be a non-breaking change.

If it is something you're interested in, I'll add docs to the readme :)

This works both in the browser and in Node.

Usage:

const debug = require('debug')('foo:bar');

const sec = debug.begin('section 1');

sec.mark('this is a marker');
sec.mark('it, too, shows the delta from the beginning of the section');

sec.end('finally, we can end the section');
// or simply
sec.end();

As you'd expect, .mark() is entirely optional, and the arguments to .mark() and .end() are optional as well.

Arguments passed to .mark() and .end() are separated from the .begin() text with ::, and all formatting parameters are preserved as you'd expect - even in the browser:

The separation with :: is a trivial change, so if you don't like the way it looks or have a better idea on how to introduce the mark/end text to the existing arguments provided by .begin(), let me know and I can whip it up.