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 Mammoth May 8, 2019 at 12:22
— Overall performance is above average.

— The design doesn't fully comply with the guidelines.
— Filtering is slow (graphs #3 and #5).
— Total values (graph #3) and percentage (#5) are missing.
— Long tap on a data filter doesn't work.
— Bonus goal is completed.
— The scrolling feature is curious, unfortunately it doesn't work well on iPhone 5S.
iPhone 5S, iOS 12.1; LG Nexus 5X, Android 8.1
Giant Parrot Apr 17, 2019 at 13:34
No button long tap handling
Redmi 3 / Chrome
Large Mammoth Apr 17, 2019 at 14:14
out of curiosity what should I do on long tap?
NaN bottom tick value
MacBook Pro 2015 / Chrome
Large Mammoth Apr 18, 2019 at 04:43
oh no I took log from 0 = )
Giant Parrot Apr 17, 2019 at 13:35
The overall design looks untidy. Charts sometimes display strange state when there is no transition or animation.
MacBook Pro / Safari 12.1
Large Mammoth Apr 17, 2019 at 14:17
about dates staying translucent, I noticed similar behaviour in some winners app of the first stage and thought it to be a design not a bug.
Giant Parrot Apr 19, 2019 at 08:32
«out of curiosity what should I do on long tap?»

Disable all the other lines. It’s stated in the application specification.
Large Mammoth Apr 19, 2019 at 17:56
Thank you so much! Completely forgot aboit it. Now could you please remove this comment as it’s being displayed as the 4th issue? = )
The functionality of pie chart is a bit wrong. The timeline (navigator) for it is of a different type (areas, should be bars). The navigation for pie chart is happening not in 1-day steps.
The dates in title are strange - they have time along with the date, and always display from-to range. Opening the pie chart for 5th of April and 6th of April opens the same values. When navigating through the pie chart, the values are not summed - might be there is a median value displayed, but still not clear how it is calculated sometimes.
Chrome 73
The switched off buttons still have background color - thus it is difficult to distinguish between on and off buttons.
Chrome 73
For bar charts the focused bars take on masked overlay rather than all other non-focused bars.
Chrome 73
Wrong format of dates almost everywhere
Chrome 73
The values in the tootlips are not in comma-separated format
Chrome 73
No percents displayed for stacked percentage chart tooltip entries
Chrome 73
No 'zoom out' icon for Zoom Out link

Overall not a bad work at all! It definitely doesn't deserve a dislike! I don't understand why people have put so many down-votes here.
Chrome 73
Large Mammoth Apr 23, 2019 at 10:57
Hare the Just, thank you for a very detailed break-down! Yep, down-voting others is the ONLY way to improve your own position now, haha = ) Not the best idea from Telegram. And I agree, my implementation is far from perfect.
Nobody added any issues yet...