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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.

Voting

1945
by rating

Issues

Fair Quokka May 8, 2019 at 14:41
— Overall performance is poor to average.
— The app is sloppy on vertical scrolling.
— Graph #3 is slow when filtering, scrolling and scaling.
— Bonus goal is completed, but slow on zooming in and out. 
Samsung Galaxy J7 (2017), Android 8.1.0; iPhone 5S, iOS 12.1
30
Wrong timeline (navigator) for the pie chart. It has empty space at the top for some days, but should be 100% filled always.
Chrome 73
21
Crazy Cock Apr 18, 2019 at 19:46
Thanks for the feedback, didn't have enough time to implement stacked-percentage-bar chart type as well.
Slim Peacock Apr 17, 2019 at 22:08
- labels jiggle on slow resizing of chart view, eg "Growth" chart

- showing minimap in "Growth" zoomed-in chart

- "fruits"-charts - perfomace issues on dragging selected interval, chanding selected interval borders, unchecking lines

- night-mode doesn't change buttons colors

- page zooming allowed on mobiles

- left and right parts of a title are not on the same line

- if touch "fruits collected" in zone when tooltip should appear after touch, then it immediately zooms in

- font of axis labels is too slim

- interval and tooltip saying different days in the end of the chart, see screenshot
BQ strike mini, 4x1.3Hhz, 1Gb RAM, Chrome, Android 7
20
Crazy Cock Apr 18, 2019 at 06:52
Thanks for the feedback!
1. Can't reproduce :(
2. Yeah, but I think it's better to have preview on this chart as well — the shape is pretty complicated and it's nice to be able to zoom it.
3. Ok, thanks. Didn't have enough time to get really serious about performance. On my devices it works fine.
4. Yeah, I just used colors from JSON.
5. Page zooming on mobile with double tap is disabled and page zooming with two fingers is enabled by design.
6. Really? For me they look on the same line :)
7. Yeah, you're right.
8. Font labels weight — hm... For me it looks like on the design provided, but probably you're right.
9. Oh. You're right. It happens sometimes.
The dates in the title displayed incorrectly for line charts and percentage charts, but they are displayed correctly for bar charts.
The final date is present in the preview, but not displayed in the title.
Chrome 73
10
Crazy Cock Apr 18, 2019 at 19:47
Yes, known issue.. thanks!
- no smooth animation between values
- no text animation
- table always in center and sometimes hide the dots
- some white spaces in round diagram
- no smooth animation in round diagram
Macbook Pro 13" late 2013 / Opera / macOS 10.14.3
Crazy Cock Apr 17, 2019 at 16:46
Thanks for the feedback!
> - no smooth animation between values
Could you please explain it a bit? Which values do you mean?
> - no text animation
I didn't animate string range in top right corner and text in the tooltip. Other texts (x, y labels, title/Zoom Out) are animated.
> - table always in center and sometimes hide the dots
Yeah, that's true (in non-zoomed mode).
Otherwise it will run away from the cursor all the time and it won't be possible to zoom in one click.
In zoomed mode, the window is always on the left/right side from the cursor.
> - some white spaces in round diagram
This is not clear for me, could you please make a screenshot?
- no smooth animation in round diagram
Do you mean the transition when one piece of pie is selected and shifted a bit? Pieces selection is not animated, that's true.
Little Swan Apr 17, 2019 at 13:26
Great job!
Crazy Cock Apr 17, 2019 at 16:36
Thank you very much!
Swift Starfish Apr 17, 2019 at 18:59
- chart 1 - Y axis should starts from 0.
and nothing more )
Crazy Cock Apr 18, 2019 at 06:35
Thanks for the feedback! A quote from the contest task: "The Y-scale on line graphs should start with the lowest visible value (Screenshot 4)."
bad scale
Crazy Cock Apr 18, 2019 at 06:39
Thanks! It's by design, the next point is located very high and that's why the scale upper limit has already started to increase.
Performance issue for pie chart - when you enter the zoommed in mode the performance drops significantly. If you watch the console - you can see that there is probably some infinite loop going on with logging current chart portion for pie chart.This is happening even if you don't take any actions. Once you exit the zoommed in mode, this stops. And that happens only for pie chart, other charts' zoom in works well.
Chrome 73
Crazy Cock Apr 18, 2019 at 19:46
Lol, I forgot to remove all console.log's :) Thanks!
The initial date range selection is more than 2 months , unlike the suggested by the contest screenshots final month
Chrome 73
Crazy Cock Apr 18, 2019 at 19:52
Thanks, but you can also say that about 1/3 of overall data was selected on the screenshots. 1/3 is about 4 months, according to the JSON.
In rare cases when the y_scaled chart lines top relative values don't match, there is no rescaling on line select/deselect
Probably a minor issue
Chrome 73
Crazy Cock Apr 18, 2019 at 19:56
Thanks! This is by design, the next yellow point is drawn offscreen exactly at that level...
Giant Parrot Apr 18, 2019 at 12:42
The minimap grips have too little touch areas, they are hard to grab on touch devices.
Redmi 3 / Chrome
Crazy Cock Apr 18, 2019 at 20:06
Hm... Actually these areas are already extended (with Touch radius), but probably they should be extended even more. Thanks!
Giant Parrot Apr 18, 2019 at 12:49
The Y scales disappear when I scroll the 2nd chart
MacBook Pro 2015 / Safari 12.1
Crazy Cock Apr 18, 2019 at 19:50
Thanks! Yes, that's by design. They can disappear for a very short time during the transition.
Unable to select time range by dragging in the preview area (outside of the current window).
Crazy Cock Apr 18, 2019 at 20:01
That's by design! You can only drag left or right boundary or the window itself.
Visual issues: bottom padding in the tooltip is too big (visibly larger than top, left and right ones). Distance between checkmark and label in the legend items is too small.
Crazy Cock Apr 18, 2019 at 20:02
Yeah, it's not pixel-perfect (however, pretty close).
In zoomed-in mode, there's no snapping to day boundaries. Video provided by Telegram clearly showed that snapping.
Crazy Cock Apr 18, 2019 at 20:00
There is snapping to days in pie chart mode. I didn't see snapping to days/months on other gifs, did you?
> Could you please explain it a bit? Which values do you mean?
I mean smooth transaction of circles when move mouse to next value little right or left
> other texts (x, y labels, title/Zoom Out) are animated
they already animated from first stage
Crazy Cock Apr 18, 2019 at 20:03
Ah, I see. Nope, I didn't animate crosshair points.
Slim Jaguar Apr 18, 2019 at 19:39
Strange Y axis behavior (See screenshot)
No snapping to days, months
Crazy Cock Apr 18, 2019 at 19:59
Thanks for the feedback! That's by design, that's how Y transitions are implemented.
There is snapping to days in pie chart mode. I didn't see snapping to days/months on other gifs, did you?
Mellow Clam Apr 19, 2019 at 11:42
Great job. Cool animation for area chart.
Crazy Cock Apr 19, 2019 at 12:13
Many thanks!
Large Beaver Apr 21, 2019 at 21:16
Animations not working in IE11 but generally good solution. Good luck in competition. Voted +1
Windows/IE11
Agile Piranha Apr 22, 2019 at 17:13
good
Nobody added any issues yet...