@WReach Thanks for your thoughts. Is there any source to read about where implementations live? Or by high level you mean Dataset is just a feature from a WL package?

@Kuba In my opinion the HTML for a radio button bar does not favor one or the other.

@Pickett why do they do this then ;(

@Kuba why indeed :/

@Pickett Do you think that asking "What functions aren't deployable to the cloud" is on topic? There is no documentation but basic stuff like Framed or Overlay is just displayed as InputForm while some other functions (probably with out of date HTMLFragment export rules) are incorrect, e.g. Column is just a row.

So a cheatsheet would benefit everyone interested.

@Pickett I do have a package manager in the works, based indeed on extended ProjectInstaller. However, the progress has been very slow for various personal reasons. What I want to do is to first develop MIDE to the point where it becomes usable as a general - purpose Mathematica IDE (it is not very far from that, but there are still many things to be done there). Then, the package manager will be a plugin to MIDE.

@Pickett The reason for this strategy is that I became convinced, that, given how most people work with Mathematica (they use the FrontEnd), and given that most users are not hard-core programmers, the presence of a good UI, well integrated with their workflow, is essential. MIDE is supposed to become such a UI.

@Pickett, @RolfMertig The idea is to have a rich and easy-to-use UI to search and explore available packages, monitor dependencies, load / install / unload / uninstall packages, etc.

@Kuba It might still be premature to collect a list of things that haven't been implemented, as they could be implemented at any time. But you know better than me if this would be useful, I haven't deployed UIs like that.

@LeonidShifrin Nice to see that it's finally been shown to the public. Re. package manager as a plugin that sounds like a good idea.

@Pickett The answer with a list of issues would be subject changes reflecting the cloud development.

p.s. CloudDeploy[Column[{1, 2}]] gives "twelve" but Beta is finished...

@Kuba It's actually <p><span>1</span><span>2</span></p>, which means that you can make it look like a column by providing rules for it in your own stylesheet.

@Kuba I don't see any harm in posting a question like the one you suggested, really. By premature I meant only that it's a moving target and will require much more attention than most of our posts here.

@Pickett That's great but why it isn't displayed as a column by default? Grid is a <table>.

@Kuba I agree that those are not the right choice of tags; span is for inline elements, rows are block level elements. <p> shouldn't be wrapping block level elements. <table> would have been better, or it could be implemented with something general like <div>.

columns are block level elements* (block-inline could be appropriate also.)

@Pickett Ok, thanks for your opinion, I will create a topic when I get motivated enough. ;)

@Kuba Datasetis not a <<kernel function>>.

Try

Needs["GeneralUtilities`"]
PrintDefinitionsLocal@Dataset

You might not like what you see.

PrintDefinitionsLocal@Dataset`DatasetPart

for the Part part.

@Kuba Yes, by "high-level" I mean plain ordinary package code as opposed to functionality hard-coded into the C/C++ kernel. I know of no official definitive source of information as to what symbols are kernel functions. We can always resort to spelunking. For example, in recent versions we can inspect the extent to which Part is built-in using:

Dataset[Names["System`Private`Has*Q"]][All, {All, ToExpression[#][Part]&}]

The latest versions of PrintDefinitions indicate kernel functions explicitly.

(by "recent versions" I mean 10.4+)

@halirutan There's an image processing question that's really been bothering me here. I don't want to take up your time, but if you have any intuition for what could cause the black border in the final result in my answer it would be much appreciated.

Is there a hidden way to format the y-axis without have to specify the labels and ticks. This is in a DynamicModule of many combinations. I want the automatic ticks I just need to change the format and significant figures.

@Szabolcs Sorry,Maybe disturb you,but as your post's answer.There are some difference with expected

I mean the vertex 2

p.13 of this paper

Or this