squint | Search PostgreSQL jsonb and hstore columns | SQL Database library

Im doing some tests, where I'm testing the POST routes,I think the test are written out fine, however now i'm getting an error which says

"Error reading file from disk: Error: ENOENT: no such file or directory, open './database.json"

Please check the code here: https://stackblitz.com/edit/angular-sidenav-mixedpushover

I would like to set up an angular material sidenav so that it has a toggle button that is always visible and slides with the sidenav as it opens and closes. The main content area should be obscured by both the button and the sidenav when it is open (i.e. mode="over").

Basically I want the sidenav to operate in "over" mode but to "push" the button that toggles it.

I have tried several approaches but nothing works quite right. My current implementation (not shared because it's too hard to make a simple example of) has two toggle buttons: one that is positioned at the edge of the screen which is shown/hidden manually, and another button that is part of the sidenav content itself. If you squint, it almost behaves like a single button that slides with the sidenav! I also used some animations to try to blend the two buttons a bit, but it is very hard to match the speed of the sidenav.

Some pictures of what I am trying to do.

Sidenav is closed:

Sidenav is open:

Does anybody have any workable suggestions? Thank you!

I'm working on a particle system simulation in which many thousands of particles randomly walk until they attach to a growing cluster. To visualize this cluster, I'm storing the cluster particle positions as 1s in a numpy array initially full of 0s and then using the matshow function. The 0s are colored white and the 1s are colored black.

I've noticed in these simulations that a situation like the following might occur (the actual arrays are much larger, 1000x1000 or larger):

I have been getting this error message in Swift:

Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key faceview.'

I spend a good part of my day squinting at failed pytest output to see why two objects, or two collections of objects, don't quite match.

• Rails 6.0.1.2 using Webpacker
• Kaminari gem
• haml
• Rails-ujs

I am implementing an infinite-scroll feature using the kaminari gem for pagination and rails-ujs.

The partial loads fine on the initial page view. It displays the results (each result is a card rendered from a partial called ‘rooms_card.html.haml’

Rendering the rooms_card partial on the index.html.haml page as a collection.

I'm trying to start a Spring Boot application as a Service on a Amazon Linux EC2 instance.

I'm packaging the service with:

When I'm making qq-plots (basically a scatter-plot), I frequently use matplotlib, occasionally Seaborn. If I happen to have a few million data-points (let's say 8 million), plotting can take forever. I've frequently found myself waiting 15+ minutes just to have a plot output to a png or pdf. Same problem with R, actually.

I've tried many tricks to work around this. pngs save faster than pdfs. I've tried only plotting the top 10% of the larger of my two datasets and hiding it behind the smaller one, figuring that visually it won't be apparent (unless you're squinting). I've tried down-sampling my larger dataset, which works 'okay', but I have to put a lot of work in up-front to make sure none of the important points get down-sampled, and the resulting plot tends to end up looking sparse.

My go-to lately has been to try a combination of the above methods until I have a plot that looks okay, and then to bite the bullet and wait the entire 15+ minutes to plot the whole dataset when I'm ready. I hate that I have to do this. MatLab does some weird magic to spit the same plot out in seconds, but I hate using MatLab and I don't really know the language that well. My understanding is that MatLab somehow achieves this by calculating redundant pixels first, and only plotting necessary pixels. Is there any truth to this? Is it possible to replicate this behavior?

I have this code that tries to create a new time_point by adding a duration: