is-available | CLI for checking domain availability

In Angular, what is the downside of accessing a BehaviorSubject's getValue() directly, versus using a subscription and updating a (local?) variable, for use in *ngIf?

In a shared service:

currentState : BehaviorSubject = new BehaviorSubject(null);

In the UI .ts file that uses the shared service:

constructor (public myservice : SharedService) { };

In the UI .html file, only show after the service is initialized: (things within it get a null reference for currentState if I don't do this:

*ngIf="myservice.currentState.getValue() != null"

OR, subscribe, update a local variable, and use that instead of myservice.getValue(). I'm sure someone is going to ask, why even use a BehaviorSubject if I'm going to do that, but perhaps its so if someone wants to get notice when the service's value changes, they can. Kinda a "event-based-is-available-with-this-service-if-you-want", but also "just-access-it-yourself-if-you-want" based on the use-case of the current UI?

Am I doing this wrong? I'm using the value of the behaviorsubject to control the UI, so I need to use ngIf.

I have some problems with flutter dialog wise. For short, I don't understand how to use a headless CMS. I already read the documentation a few time.

I wanted to add content dynamically in my app using a headless CMS, I have my apiKey and emailHash. This is the code that I got from their website.

I don't understand how to get the content from the platform, when I run the code, I get all the text that I put in dialogue wise, but how can I acces just a part of it? And how I can add it in my flutter application? For the moment it displays just in the console, because I printed it, but I don't know how to put it in a widget.

I have this html

The gatsby-stripe-plugin is deprecated. It states that stripe.js has its own solutions now on how to load stripe into the code, e.g. const stripe = await loadStripe(secret);

But stripe states in its readme that you should add the stripe script to every file/page and not only at the checkout page in order to check for fraud.

What would be the best way to do so. I am quite new to gatsby, is it a valid solution to just add the stripe script to the index.html in the public folder?

I have the following DOM tree (simplified)

I am currently in need for a range slider (a slider where I can set up a min and a max value). I found two related questions Range slider in Qt (two handles in a QSlider) and Why RangeSlider is available in QtQuick and not as standard Widget but neither of them is written in python3 and I am not very familiar with C++.

I found this perfect github tool https://github.com/rsgalloway/qrangeslider but it is unfortunately written for PyQt4 and I am using PyQt5.

I am planning to reformat this github source with PyQt5 bindings but before doing so I want to know if anyone has done it before so I could save time? Or if anyone has a different solution, I am open to suggestions.

After running my application (.Net 4.5, 64-bit, WPF) a long time (one to two weeks) I encounter the following app crash:

I just started to work with 3D meshes, oriented to be used for finite element analysis. I would like to model inclusions for materials (any shape, but mainly interested in spheres and ellipsoids) in a cube-like matrix. These inclusions shouldn't be coincident with each other.

So I was thinking to use some sort of package for python which can plot primitive objects, look for their intersection (if it exists) and export the geometry (or mesh it and export it). In case of spheres, I was coding my own solution, but I think it will be very difficult to expand it for any other shape than spheres.

After a couple of days looking for an appropriate library/module, I can't decide which one I should use.

I would like to use python as the main language since it is easy, open source and I already know a bit. Hence checked this link: Good geometry library in python?

But:

• SymPy. It seems it is only for 2D objects.
• pyeuclid. Looks discontinued in its google code page.
• CGAL. It seems the most advanced, but I can't find if it does intersections.
• geometry-simple. Also discontinued, and I believe it does not handle 3D objects.
• pythonocc. The lack of documentation is an important issue here.
• Open mesh. It seems a good alternative but I can't see if it does intersections.

I might be missing some features or libraries. Sorry about it.

If it is really necessary and useful, I could try to use C++ which it seems has more libraries for geometry as stated in here, here and here. Also, I think I should mention I work mainly on Windows 10, and my experience with Linux is little but I could challenge myself.

To summarize my question: Is there any good library in python (if possible) which can find intersections between 3D objects? Am I missing any feature or library I should know? I would appreciate a lot any suggestion in the right direction.

Thank very much in advance!

I recently saw that the go yaml lib has new version (V3)

with the nodes capabilities (which in my opinion is a killer feature :) ) which can helps a lots with modifying yamls without changing the structure of the file

But since it is fairly new (from last week ) I didn't find some helpful docs and example for the context which I need (add new object/node and to keep the file structure the same without removing the comments etc)

what I need is to manipulate yaml file

for example

lets say I’ve this yaml file