Array diff includes extensions to the Array prototype

[AlexMedia]

I have a project where a few functions have been added to Array.prototype. When I have two objects that I want to run a diff against, jsondiffpatch returns me the array with a couple of NaN keys added to the bottom, without any values. The amount of NaNs is equal to the amount of functions which were added to the prototype.

I made a sample JSFiddle which can be viewed here.

I would suggest that these items do not show up in the diff, as these functions are not part of the array but instead of its prototype. I believe that using array.hasOwnProperty(key) could be used to exclude prototype extensions, but I'm still trying to figure out how array diffing works internally.

[Syzygy24]

Having some trouble with this as well. A temporary workaround is that you can set showUnchanged to false and it ignores the Array.prototype field, because the prototypes don't change.

[benjamine]

fixed (the problem was on the formatter, deltas were correct), released as 0.2.3 , thanks for the detailed report!