wireless | Very simple OpenBSD console wireless connection manager | Wifi library

During the course of the work day I have field techs out and about and they'll occasionally need to add a MAC address to our Wireless Access group in AD. We don't fully support them getting into AD on their own and we've been using a script to allow them to add MAC addresses the right way. I have taken it upon myself to fully idiot-proof this thing and i'm nearly there minus one glaring issue. I can't stop them from adding MAC addresses with values greater than 'f'.

I am using RTCPeerconnections to submit video and audio in a web-RTC-based video-messenger. I am able to detect network disconnects after approximately 7 seconds - yet, this is 7 seconds in which the user is staring at a frozen video and starts to randomly click buttons in the app. I would like to improve the user experience by shortening this timespan - e.g. by informing the user about a network issue if the video freezes for more than 1 second.

Status Quo: I am currently detecting respective situations by listening to the onconnectionstatechange event of the RTCPeerConnection. Yet, the event is only fired approximately 7 seconds after the disconnect. I determined the ~7 seconds by connecting two machines via normal WiFi, using a hardware switch on one of the laptops to switch off the wireless (such switches exist on some older Lenovo models / guarantee an immediate disconnect) and wait for the other machine to detect the event.

Consideration: The root cause being the interruption of the underlying network connection, it would be ideal to detect the changed network status as early as possible (even if its just transport delays). This said, the disturbance faced by the user ultimately stems from the video that instantly freezes when interrupting the network. If there was no way to detect the connection issue earlier, it could be an option to detect the frozen video instead. Is any of these two things possible (ideally event-driven, so that I don't need to poll things every second)?

Here's a very simple code snippet describing my current disconnect detection:

I have a list of all available stock items with a unique stock id and detail attributes. From the UI, I collect customer selection, based on the unique value code in customer selection, I would like to find the selected item from the stock items. That is,

What is the best approach to find stockItem from availableStock that matches the value code attribute in customerSelection array list? Please have a look at the example below:

I have a MySQL table "products" with a descriptions field which contains the word "pack" or "pack of":

I have samsung galaxy watch 3 with Tizen version 5.5.0.2. It has wireless charger and no usb port. I tried to connect with the help of wifi adb but it has no option like debug over wifi .The question is how to connect it with android studio?Watch Model

i'm trying to get names of products but when it gets to the sponsored products it returns None. Here's my code;

I have this dataframe

UPDATED I have made a force directed graph using D3.js. Each node corresponds to a company, and each link corresponds how they are related to each other according to the link color. What I would like to achieve is to use the image URLs within "nodes" data and show a different image for each bubble. Currently I was able to set a fixed static/identical image for all of my bubbles. I tried to connect the pattern to my "nodes" data, but unsuccessfully which ended up in an infinite loop.

Simple HTML canvas for my svg and two buttons for the zoom in and zoom out by click.