confusion | An experiment in fingerprint-free encrypted messaging

My Question: What exactly does “compile-time” mean? I present my understanding below and where I am getting confused.

Compilation is the process that generates a single executable .exe file from the .vb file. There are several ways to do this, for example by using the VBC.EXE command from the developer command window or MSDOS. The way I understand “compile-time” is that it is time when such a command gets executed and the exe file is generated. The following are the what I find confusing:

1. When I write Dim i = 5, the compiler infers or “knows” that the variable “i” is an integer.
2. If I want to print an integer or a string using the Writeline method of the console class then the compiler automatically determines which overloaded version it should call. So in this case also the compiler “knows” – this is also known as compile-time polymorphism.

My confusion: Since in both the above cases the compiler infers or knows the type of variable or the version of the overloaded method to call just after we have finished typing the sentence, is this also called compile-time? We have not given any sort of compilation command here.

1. Another confusion on the definition of compile-time refers to the case when we explicitly define overloaded methods. In the case of the writeline method, we know from the pop-up given by intellisense that immediately after we have finished typing the sentence the version with the correct signature is called. Now, when we define overloaded methods does the compiler know which version to call when we call the function (depending on signature) somewhere in the program right after we have finished typing the code? Or does the compiler know this after the exe file has been generated? This is a case of compile-time polymorphism. But then which time or which step is the “compile-time”?

I am working on extending a Vue.js frontend application. I am currently inspecting a render function within a functional component. After looking over the docs, I had the current understanding that the render function within the functional component will return a single VNode created with CreateElement aka h. My confusion came when I saw a VNode being returned as an element in an array. I could not find any reference to this syntax in the docs. Does anyone have any insight?

I'm trying to import 'greek' to 'api' file in same directory

This is my directory

I've been playing around with Eloquent for a while, but I met a case where Eloquent::where() is not working as I expected. I managed to get Collection::where() worked instead though. However, I'm still wondering why Eloquent::where() didn't work in my case. I will keep the problem as simple as I can, here it goes:

• I have Product and ProductCategory as many-to-many relationships and the pivot table name is "product_relate_category".
• Here is the relationship between them. It's still working so you can skip

I am running the following script to create pdf file.

Hi I am learning about api security and reading material for Oauth. I am little confusion as below.

I am a client and using the api services from some third party. Once I as a client login to my client app and later I need to access api. Then the authorization process start. In the first step I need to get request for authorization code, once the consent is developed and Oauth server return the temporary authorization code then client will be requesting for the token. In this step client would be sending client id and client secret with other parameters. Lets say if one of the programmer who developed the code or has access to the code would know the client id and also the client secret. Once that developer leaves the company then how protected that client id and client secret is? Having the client id and client secret one can easily access the resources.

Am a self learning developer, now learning Java. I have learned that to use method reference for a Functional Interface, the signature of the method we referring must match the signature of the abstract method inside that functional interface.

But While learning Comparator, found that "Comparator.comparing()" method takes Function interface and returns a Comparator. I know that the abstract method of Function interface must take a argument and return a value.

but I can able to pass any method(as method reference) that partially (not fully) matches the signature of Function interface to the comparing() method of Comparator.

for example consider the below example.

I am new to SwiftUI (iOS App Ver 14.x) as I normally use Xamarin.

In this case I need to have the application specifically written in SwiftUI. (I am aware that some stuff still needs UIKit).

I have got my head around it though I am generally speaking struggling to get to grips with where and how to store stuff.

For example (greatly simplified) let us say I want the following:

All in the same view.

Two form fields:

First Name: … Last Name: …

A Button that says, “Add Photo”.

A Button that says, “Save Locally” (N/a but just for info, to be later uploaded to a web service that isn't always available at some point).

Now doing all the standard stuff this is pretty straight forward.

BUT.

I want to encrypt the form input (once converted to JSON, note I can convert to JSON easy enough).

I also want to encrypt the image before it is stored. (the real app has more than one image).

The stuff will be encrypted in the real app using asymmetric encryption (which I understand well, again this is not so relevant here).

But for the sake of example, I am happy to just ‘encrypt’ the JSON and picture as two separate files using something simple just to show the idea. XOR it or something simple to show.

My question is where is the best places code wise to do this with some basic examples if possible. I know this is a little subjective but just something simple and obvious. Click button, run this func, do this type of thing etc.

Where do I store stuff (which I am finding a bit all over the place)? This is my main source of confusion being honest.

My understanding is that you would use a FileManager object and the documents directory (though I am not sure if this is best practice, or even the right place.

The requirement from a client is that nothing is stored unencrypted for compliance reasons (completely ignoring anything Apple have in place good or bad).

I have created a confusion matrix using the following code: