questionable | Question your objects | Machine Learning library

The title is probably poorly worded, but I'm trying my hand at creating a REST api with symfony. I've studied a few public api's to get a feel for it, and a common principle seems to be dealing with a single resource path at a time. However, the data I'm working with has a lot of levels (7-8), and each level is only guaranteed to be unique under its parent (the whole path makes a composite key).

In this structure, I'd like to get all children resources from all or several parents. I know about filtering data using the queryParam at the end of a URI, but it seems like specifying the parent id(s) as an array is better.

As an example, let's say I have companies in my database, which own routers, which delegate traffic for some number of devices. The REST URI to get all devices for a router might look like this:

Setting aside all the concerns about the necessity of using typeid and dynamic_cast and their questionable effects on code maintenance, is there any information about the performance of these two dynamic type introspection mechanisms? The Wikipedia article on RTTI claims that:

The use of typeid, in a non-polymorphic context, is often preferred over dynamic_cast in situations where just the class information is needed, because typeid is always a constant-time procedure, whereas dynamic_cast may need to traverse the class derivation lattice of its argument at runtime.

However no citation is provided. As such I wanted to ask if this claim is true and if one of these two mechanisms should definitely be preferred performance-wise over the other. I wasn't able to find information about any bounds on time complexity of these operations.

I'm learning swift, and I do the sololearn course to get some knowledge, but I bumped into something that I don't understand.
It is about modifying an array's values. The questionable part states the following:

In the following example, the elements with index 1, 2, 3 are replaced with two new values.

I'm working on WebRTC streaming which streams video from a device to a browser. This streaming works in Chromium browsers just fine but fails in Firefox. There is a failure with the SDP exchange which then halts the rest of the connection (no ICE candidates sent after SDP exchange).

There are some issues with Firefox's answer SDP I've found but I haven't discovered a reason for the issues: SDP mentions VP8 but we use H264 only; m=video 0 has port 0 but typically that's non zero; I typically get an a=inactive line; a=sendrecv should probably be a=recvonly; many other lines are missing (for example, ICE-specific lines)

SDP examples below:

We have a legacy application that uses SQL Server as its back-end. As part of some security concerns, it encrypts some fields collected from the user using (single) DES with a key & IV that is hard-coded into the app code, then Base64 encodes the encrypted bytes, and finally stores that string in a varchar column in the DB. Woefully insecure at this point (and probably when it was first coded), along with a questionable design / implementation, but it is what it is. My task is to implement a CLR User Defined Scalar Function in SQL Server that can decrypt this type of data.

As a proof of concept, I created the following short console app to make sure I understand the DES decryption process in C#:

I have following piece of code:

Currently I am pulling data from an API that is in JSON format. I parse this dataframe using ‘json.loads’ into a python variable, where I then upload this data to a connecting MYSQL database.

The issue I am encountering is that the JSON data stored in ‘employeed_parsed’ as detailed below, has a chance of incorrect data coming through.

I am building a website (related to my homework! which has a javascript code containing three characters, their description, and the number of comments related to them. So far, only one character is visible on the webpage which is "Finn the Human"

What I want to achieve is to have 3 boxes display next to each other with the name/description of the rest of the characters.

Here is how it looks like now

How it's supposed to look like

It's a type of homework, we need to create those two boxes using the for each cycle in JavaScript. Any ideas on how to do this?

I want to convert a bool into an int. The "standard" option is: