Result fallback can be a function

[megawac]

Personally I think this is an oversight of #1515 and believe this is a complimentary case -- however, this is easy to get around if you disagree

[jdalton]

It wasn't an oversight, it was deliberate. I guess it depends on what phase you consider the default value. When I think of default value I think of the default fully resolved value. After this merge what the user provides as the default could have further resolving done to it.

Side note: This change is breaking and the new behavior should be documented.

[jashkenas]

Yes — we shouldn't do this. It makes a lot of sense to use _.result to grab a function, or a fallback function, which this change breaks. Reverted.

[jdalton]

Thinking on it some more. Normally, without providing a default value, a user has no way of resolving a function property value (the actual function), so maybe it makes sense. It's kind of a wonky case. Imma sip on some coffee and let this marinate.

[megawac]

This came out of a use case in one of my projects. I can give a couple useful examples of why this may be useful

_.result(obj, 'dateCreated', Date.now);
_.result(obj, 'fullName', function() {
      return this.firstName + " " + this.lastName;
});

Again, I'm not married to this being included, but there is some nice sugar that can come from it

[jashkenas]

Ah, nice. Sorry for the confusion. Go for it if you like it.