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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 Mammoth May 8, 2019 at 14:03
— Overall performance is poor.

— The design does not comply with the guidelines.
— The app is slow when filtering, scaling and scrolling.
— The graphs take the entire width of the page when viewed from desktop browsers.
iPhone 5S, iOS 12.1; LG Nexus 5X, Android 8.1
Busy Swan May 10, 2019 at 20:01
Thnx for your issue!
About performance, compared my charts with many others (only on desktops with throttling x4(i5 6500)) and didn`t find big differences. However, when You wrote about it, I checked on the mobile(samsung A5, previously checked on xiaomi mi note 3) and was disappointed. I do not know what could be the reason, but most likely I don’t know something. I would be glad if suddenly someone here will be able to say the reason so bad perfomance on mobiles:)
- dates in top right corner in not animated
- text on table in day mode is not black
- no smooth animation between values
- no buttons animation
- buttons align to center
- no actions for long click on the buttons
- old design for minimap
Macbook Pro 13" late 2013 / Opera / macOS 10.14.3
Busy Swan Apr 18, 2019 at 22:10
Thanks for paying attention, but I do not pretend to anything) was simply not enough time, the main work took 10 hours a day :)
Timeline (navigator) for pie chart is not completely correct - it should be stacked bars for each day, instead of stacked areas
Chrome 73
Busy Swan Apr 18, 2019 at 21:41
I absolutely agree, did not have time to finish
Timeline (navigator) unselected area mask is always black
Edge on Windows 10
Busy Swan Apr 18, 2019 at 21:54
Thanks, agree. Maybe because i use rgb_(r, g, b, a) instead rgba(r, g, b, a). and Edge didn't understand me :) Cant check for sure all my dev is brroken (refactoring time:) )
Sorry you didn't have time to finish some bits. I see you've put a lot of efforts into this work. I disagree that your work should receive so many dislikes. No dislike from me.
Busy Swan Apr 23, 2019 at 11:28
Yes, many did not have time to do everything they wanted) probably had to take a vacation)
I did not put minuses to anyone)
I also want to note that for some reason the size indicates the zip source in which I downloaded everything just in case, in fact you can see the request from the page such as on the screen (inject.js is a chrome extension)
Dandy Scorpion Apr 17, 2019 at 16:43
- there are 2 date lines visible at the same time (1920px wide screen) (11.jpg)
- zooming to max value is not correct (12.jpg)
- zooming doesn't work on chart 2
- something is wrong with data in graph 5
(uncheck all checkboxes but Kiwi and Mango. Make a screenshot (#1). Than Uncheck Kiwi, and Check it again. Make another screenshot (#2). Compare screenshots)
Busy Swan Apr 18, 2019 at 22:09
about data in 5 data. Unfortunately, I don’t see any screenshots, but if I understood correctly, the positions of data`s just changes, initially it seemed like an interesting idea, but apparently only to me :)
yep, agree have problem with it, thnx.
About two date lines: don`t think that this is bug, but ok.
About maxValue: i`m not want implement zooming to max/min value, I was based on user experience perception. Therefore, I came to this decision with beautiful numbers for the steps. You can check that they are accurate everywhere and are multiples of 10**n.
About zooming on chart 2: I looked at your implementation of the animation, and that was what I had at the start, but it seemed to me wrong, so I rudely canceled it to realize later, based on the multiplier, so that the graphs did not jump separately from each other. But unfortunately I did not have time again.
So agree, bug.
No percent labels, no tooltips and separations of the sectors of pie chart
Chrome 73
Busy Swan Apr 18, 2019 at 21:41
yep, see above
Timeline (navigator) is shown for the single column chart in zoommed mode
Chrome 73
Busy Swan Apr 18, 2019 at 21:49
it was my Wishlist) It seemed strange that we have the data for every five minutes, but this is not to inform the user. What is the point of loading them then?) and I really like how the animation of the lines came out) is far from perfect, but I give myself a discount that this is my first acquaintance with canvas, and I was limited in time (
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