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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 13:54
— Overall performance is average.
— The graphs blink on vertical scrolling (the attached video).
— Vertical scrolling doesn't work unless you aim outside the graphs.
— The third and the fifth graphs are slow when filtering.
— Bonus goal is completed.
Samsung Galaxy J7 (2017), Android 8.1.0; iPhone 5S, iOS 12.1
Deleted Account Apr 17, 2019 at 14:12
the pieces do not return to the place when the mouse moves quickly outside the block
Deleted Account Apr 17, 2019 at 14:13
wrong y axis on 2nd chart
Alina Matlakhova Apr 18, 2019 at 17:54
Application works fast and animation is very smooth. Great work!

Small things that can be improved:
1. On mobile device default navigation area is a bit small which is uncomfortable to move (especially the first move from the right)
2. Scroll on mobile device works only if you scroll the area between charts
It is impossible to select less than almost two months on daily graphs
Chrome 73
Long touch event is working good, but only on touch devices
Chrome 73 on Desktop
Hold tab selects text at button
iOS, safari, iPhone6
There are bonus tasks. But the charts can be zoommed only on double click / double tap. Clicking on tooltip doesn't do anything.
Chrome 73
Wrong timeline (navigator) for the pie chart
Chrome 73
Pie zoomed mode should have range for 7 days, current and 3 before and 3 after days.

Pie zoomed mode should move range by one day. Check telegram video3.

Btw I used same animation :) good luck
Wrong date selected when entering into pie chart from the stacked percentage chart.
Wrong value is displayed in the pie chart, compared to the selected date it has been opened for.
Chrome 73
axes labels flicker but all bonus goals completedand beautifull zoom animation, I like it (6,3)
Xiaomi mi3
Long touch reveals context menu on iPhone
X axis labels in zoomed mode are not following mockups design
No animation on values change
Scroll bar does not snaps to days or months.
Strange minimal range 1 April - 25 May for example

Confusing controls on desktop. While button is on tooltip, I have to double click. I've spent a minute to figured this out
Zoom out button is clickable during out animation. So I can click it man times and twitch the chart
Just scrolling can make chart blank
MBP 2018 / Chrome / MacOs Mojave
Empty main view after zooming in when move the brush right after clicking the legend
Works fast, but without any animation of chart scaling. So you just draw chart as is at each moment, but smooth changing of scale is required
Selected point changes position discreetly. But moving from point to point must be animated as it showed on video example provided by telegram (see example video #1)
You have an obfuscated code
Nobody added any issues yet...