Implemented diffJson

[papandreou]

It takes two objects, serializes them as canonical JSON, then does a line-based diff that ignores differences in trailing commas.

See discussion here: mochajs/mocha#1182

[rooftopsparrow]

Bump...
I would love to see this in the mainline.

However, it would be great if it accepted an already stringified JSON as well.

[papandreou]

@rooftopsparrow There, that was easy enough :)

In that case it's the caller's duty to stringify the arguments with the same indentation level -- and to canonicalize the objects before stringifying them.

[rooftopsparrow]

Fabulous! Works like a charm.

[kpdecker]

The toString method should be cached. Using the object literal adds a bit of overhead.

[papandreou]

Good point -- fixed.

[kpdecker]

This generally looks pretty good. A few minor questions and generally wondering if those questions should have comments in the code explaining them but outside of that I'd like to get this into master.

(BTW the travis environment failure should hopefully be fixed in master)

[papandreou]

If my explanations are good enough, we can add them as comments in the code :)

[kpdecker]

I've fixed the merge conflicts and got this in. Thanks for writing this!

[kpdecker]

Released in 1.2.0