Open Website

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 11:45
— Overall performance is below average.
— Design does not comply with the guidelines. 
— The app is slow when scaling and scrolling the graphs.
— Sloppy on filtering graphs #3 and #5.
— The boxes reflect filtered data.
— Bonus goal is completed, however parts of expected animations are missing. 
Samsung Galaxy J7 (2017), Android 8.1.0; iPhone 5S, iOS 12.1
When trying to zoom in the single column chart, there is some error that stops the new graphs to appear, but the new buttons are added and the timeline (navigator) is hidden.

Wrong type of timeline (navigator) for the pie chart.

Pie chart tooltips don't display values, but percents instead

No pie chart separation on hover / touch / click

But absolutely no reason to put so many dislikes to this work. The author implemented all bonus tasks and tried to follow the guidelines - probably just didn't have enough time. No dislike from me.
Chrome 73
Dandy Scorpion Apr 17, 2019 at 17:08
- extra day displayed, also day formatting above big graph is not as expected (15)
- unchecked values are discplayed on chart 3 (16)
- last day is not displayed (17)
- small chart on graph 5 is not as expected (18)
- have freezes while hovering over / dragging big graphs wich 6x CPU slowdown (i7 7700)
CH73, windows
Fierce Turkey Apr 17, 2019 at 22:44
Hi, thanks for feedback c:

1-2 items it was hard to notice х)

-"small chart on graph 5 is not as expected"
Charts are displayed correctly, is not it?
Doesn't work at all
Chrome for Android
Fierce Turkey Apr 17, 2019 at 13:28
Can you try again? All is good in my chrome for Android
Large Antelope Apr 18, 2019 at 06:36
1) Hotizontal scrolling gets aborted once I leave my cursor out of the scroll area
2) It was possible and better to place more date labels inside X axis (screen below)
Fierce Turkey Apr 18, 2019 at 19:33
Thanks for comments!
1) It seemed to me that it was more convenient. But imxo.
2) yeah, good point. Did not have time to do this)
Pavel Vlasov Apr 18, 2019 at 18:58
1) The horizontal rules are unexpectedly static, only the axis values are animated. 2) The zooming window design does not follow the reference images, neither checkboxes do.
Chrome , Windows
Fierce Turkey Apr 18, 2019 at 19:29
Hi, Pavel C:
1) Horizontal axis is animated. Did you break her? How? Or meant something else?
2) I allowed myself to move away a bit from the layout. This is allowed, judging by the results of the first stage.
Giant Parrot Apr 21, 2019 at 06:42
1. All the lines expect one get disabled when I touch a button during a scrolling.
2. Lines disappear after quick buttons clicking.
3. The bar charts have an undesired grey overlay when a mouse cursor is over.
4. The bar charts must start from 0, not from the lowest value.
MacBook Pro 2015 / Safari 12.1
Nobody added any issues yet...