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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 13:33
— The app is not optimized for mobile devices.
— Overall poor performance. 
— Y-scale always starts from zero. 
— The app is slow when filtering, scrolling and scaling all the graphs.
— Long tap on a data filter doesn't work.
— Bonus goal is partially implemented, but pie chart is missing. Sloppy on zooming in and out.
Samsung Galaxy J7 (2017), Android 8.1.0; iPhone 5S, iOS 12.1
Quirky Mammoth May 8, 2019 at 17:36
Thanks for review. Mostly agree with all points. But please do not miss the work on the UI part. I tried to make layout as close as possible to the mockups provided. And also I did not participate in the first stage. So for one week work the result is quite decent.
Line charts are scaled from 0 and not the minimum value in preview area.
Chrome 73
Quirky Mammoth Apr 17, 2019 at 12:32
What do you mean no minimum value? there is special value for possible max zoom. You can't zoom more than this value.
Quirky Mammoth Apr 17, 2019 at 13:03
What do you mean?
No bonus task (pie chart) for the percentage stacked chart.
Chrome 73
Quirky Mammoth Apr 17, 2019 at 12:33
That's right.
Reversed columns order in tooltip
Windows 10, Chrome 73
Quirky Mammoth Apr 17, 2019 at 13:03
Yes, the same as order lines on chart. So if blue line on bottom the same will be on tooltip cuz it is usefulll. And this behevior only for stacked charts
Bar chart. Сovers the entire screen with color after check/uncheck + zoom/unzoom.
Mac os - safari, chrome
Quirky Mammoth Apr 17, 2019 at 13:37
Didn't expect that :D
One more bug
One more bug. Seems like you draw additional column with wrong width, height and colors, instead of overlaying existing.
Quirky Mammoth Apr 18, 2019 at 14:37
Cuz I'm using path so there is no way to change opacity only for part of path. So I decided to use div over path
The page is moving, hard to use on mobile
Iphone x
Quirky Mammoth Apr 22, 2019 at 09:46
Well, yes. Seem that safari is shitty browser. Anyway don't have an iphone device to check right now.
Doesn't work in Edge. Probably it didn't like some variable declaration out of scope or something like that.

On the whole, the work is pretty decent and the design is mostly correct. I don't agree with the number of dislikes for it.
Edge on Windows 10
Quirky Mammoth Apr 22, 2019 at 09:44
Thanks. Yes, web components didn't work in ie and edge. Only with polyfill
Nobody added any issues yet...