Hacking | 🚀 | Hacking library

I am currently preparing html slides for an R modelling workshop, for which I use the awesome xaringan package for R. It is based on remark.js. Compared to ioslides and slidy, it does much better suit my expectations. I am absolutely excited! One feature that I missed, are scrollable "long slides". Here I leave of course the "slides" paradigm towards a mix between slides and ordinary web pages, but I find this didactically attractive to explain complex content and code. This style worked well with slidy, and I found also some hints how to enable scrollable code in xaringan.

Here I use the following CSS (found in a related post at SO):

What sites help me to increase my hacking skills, I'm a newbie, for coding there are hackerrank, hackerearth, codeforces, codechef etc, like those what are there to learn hacking?

I am trying to use MVVM and ListView for the first time. I am working from Xamarin.Forms multi column table GUI

My ViewModel looks like this

I am trying to change the extension of a file to be .zip and by hacking together some over stackoverflow answers I have cobbled together some code that sorta works, when logged to the console it shows the output I want but does nothing to the actual files https://gyazo.com/9f953285e5076dfccb1a885d1d86d4fa

I am looking to create a chart that generates a series of rows. Each row contains various buttons and text boxes. The row in question is this. Yes, I am using a bunch of divs instead of a list. No, I'm not going to change it at this time as I'm strictly hacking this stuff together so it works, not so it's semantically usable. This is an internal tool, intended for internal use only, and doesn't need to be perfectly semantic, nor does it need to be used by screen readers. I've also removed irrelevant information/names/labels/classes.

hello I am creating upsetr plot not able figure out how can I plot the data as show in below image

I saw different plot making similar to this but not same, Can any one suggest me an easy way to do it and seen some of the threads not able reproduce few according my above image kind output

UpSetR group by color set

Use a color palette for matrix points in UpSetR

blog post

Thank you

I've got a SQLite DB that houses basically a list of products and prices.

I'm pretty new so apologies if my title doesn't phrase things correctly. I've been hacking away and haven't been able to find an answer to this problem.

I have a horizontally scrolling collection. I'm trying to visually show poll results programatically adding CGRect to the relevant item in the collection based on voting data held in a Firestore array.

This is working, but the problem is when you scroll away (so the item in the collection is off screen) and then back, the code to draw the CGRects gets triggered again and more graphics get added to the view. Is there a way to delete these CGRects when the user scrolls an item collection off screen so when the user scrolls the item back into view, code is triggered again it doesn't create duplicates?

Here are a couple of screenshots showing first and second load

Here is my code (cell b is where the CGrect gets triggered)

I have created a google sheet and have set up protections that restrict users to checking/unchecking a single cell. When they check or uncheck the cell, it shades data found in the same sheet. ie. numbers >90% shade dark green. numbers >80% shade light green. etc.

This, of course, works fine on my end because I don't have any protections in place for myself. However, I just realized that the users can't use the checkbox to shade cells that are protected. They are able to check/uncheck but the code in onEdit won't shade for them like it does for me.

When I first made the doc, I had set it up for conditional formatting so it would take care of it automatically. However, this made the sheets slow down as it could be shading anywhere from 50 to 300 cells in a page. (Each page has a different number of cells.) I could go back to this if I have to. If there's a way to speed that up, I'm all ears.

However, I'm hoping someone out there can help a noob figure out how to protect the cell so the user can't edit it but let the shading work as described in the first paragraph.

Thoughts?

Sandi

Edited:

Here's the code that is activated through onEdit when a user checks the "shade" cell: (I'm sure there's a better way to write the code...but still learning and kind of hacking my way through...)