Flip added and removed order?

[jacobsandlund]

I'm wondering if it would make sense to flip the order in which added vs removed change objects get returned diffLines. This would make it easier to make a "git-like" diff without having to swap the added and removed semantics.

This is what I'm doing right now for Vaccine:

var chunks = jsdiff.diffLines(next, old).map(function(d) {
  if (d.removed) {
    return '<span class="added">' + prepend(d.value, '+') + '</span>';
  } else if (d.added) {
    return '<span class="removed">' + prepend(d.value, '-') + '</span>';
  } else {
    return prepend(d.value, ' ');
  }
});
return chunks.join('\n');

[mathiasrw]

I am using this approach - hope it can help others...

var words = JsDiff.diffWords(a,b)

for(var j = 0; j<words.length;j++){
    if((words[j].added || words[j].removed) && j+1 < words.length  && (words[j+1].added || words[j+1].removed)){
        var tmp = words[j]
        words[j] = words[j+1] 
        words[j+1] = tmp
    }
}

[runemadsen]

+1 on this. I use this lib to generate unified diffs that would normally come from Git, and they always append the deletion before the addition. The unified diff syntax explanation here seems to suggest so too:
http://en.wikipedia.org/wiki/Diff#Unified_format

(and hi @mathiasrw).

[adiroiban]

+1 on this. thanks!

[monsanto]

+1 this was surprising to me

[nylen]

+1 to this, as a result mocha displays diffs in the reverse order from standard tools like diff and git.

[kpdecker]

Released in 1.4.0

[nylen]

👍 thanks!!

[mathiasrw]

Yayyyy :)