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Testing and Issues

You can test this app and submit issues during the testing period of the JavaScript Chart contest.

Entries with serious issues will not be able to win the contest, but even minor issues might be important for overall results.


by rating


Fair Quokka May 8, 2019 at 14:22
— Overall performance is below average.
— The app is sloppy on vertical scrolling.
— Y-scale on the graphs #1 and #2 always starts from zero.
— The third graph is very slow when filtering — it reflects changes after seconds. 
— Bonus goal is completed, but slow when zooming in and out.
— The graphs are aligned to the left on desktop.
Samsung Galaxy J7 (2017), Android 8.1.0; iPhone 5S, iOS 12.1
Deleted Account Apr 17, 2019 at 13:32
selection bug
Yuriy Reznik Apr 17, 2019 at 13:44
selected points covered by informer
Yuriy Reznik Apr 17, 2019 at 13:45
redundant vertical lines by both sides of bars
Missing preview mask when opened first time. Works ok after refresh. Also, wrong y values, not starting with lower visible value.
Yuriy Reznik Apr 17, 2019 at 13:46
selected not correct bar (should be selected bar under cursor)
Yuriy Reznik Apr 17, 2019 at 13:46
zoom range should bu +-days from selected day
Yuriy Reznik Apr 17, 2019 at 13:47
informer should be near selected piece of pie. And should be average value displayed!
Yuriy Reznik Apr 17, 2019 at 13:49
no long tap on unchecked toggler
Stacked percentage (area) chart type doesn't have correct form. Y-axis values are not percents, so I think that's why the entire thing is not shown correctly.

Pie chart has incorrect timeline (navigator)

Line charts doesn't scale on the local minimum.

But anyways, I appreciate your efforts and don't think this work deserves a dislike.
Chrome 73
Nobody added any issues yet...