Fix undefined in history

[ghost]

The history modal adds an 'undefined' to the bottom, as you can see here:

This should get rid of it.

[codecov-io]

Codecov Report

Merging #49 into master will not change coverage. The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #49   +/-   ##
======================================
  Coverage    89.4%   89.4%           
======================================
  Files          25      25           
  Lines         406     406           
======================================
  Hits          363     363           
  Misses         43      43

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[Kylart]

mmmh I'm not really a big fan of this. This undefined must come from something. Instead of just ignoring it, the best move would be to find the root of this and correct it. I think a fix like this one would just hide the problem 🤔

[ghost]

In the for loop, couldn't you set l = keys.length instead of this.nbElems? That would also remove the undefined issue. I am not sure why that is used in the loop, as keys might not have enough elements to not start producing undefined.

[Kylart]

I think I set l = this.nbElems.length so that elems contains at most nbElems elements. It's part of the "lazy-loading" I set up in history.

Problem occurs when there are not many elements I guess.

Hence, you fix is ok! Thank you for making KawAnime a better place 😄