decypher | A handful of cypher utilities for Node.js | Runtime Evironment library

As a practice I'm writing that Cesar Cypher thingy and I have a little issue, to which I couldn't find solution. My code looks like that:

Good evening, I have the following list:

I'm trying to decypher some inherited pandas code and cannot determine what the list [['DemandRate','DemandRateQtr','AcceptRate']] is doing in this line of code:

Trying to have Selenium click Accept on the cookie policy button before accessing the signup form. (I want to automate the waiting list functionality as it's always a race at this GYM) But I'm stuck at the first hurdle and have spent hours trying to decypher the error message. Can you please help?

Code

When I run a custom function on this query to format this query to have commas. I am getting an error:

Conversion failed when converting the varchar value '0.00000' to data type int.

Here is the query that works that is unmodified, it returns 2174... The outcome I truly desire is 2,174. Please proceed to the function below this one that shows where I add the function dbo.fn_FormatWithCommas(). It compiles, but that is when I get a returned error when I try to generate a report.

I am learning VS Code and I do not understand the hints it is giving me while I code. Is this the Bakhus-Naur form?

The hint that VS Code gives is nothing like it is in the official documentation:

Does anyone know what this log(message?: any, ...optionalParams: any(): void) means? Or where can I find guide to decypher this?

I'm writing a simple program in which I take a .txt file read it and encrypt or decrypt it with the Playfair algorithm using a 16x16 ASCII cipher. When I decypher a file I get it mostly correct the only issue is that the char 'o' is replaced with '_' and random sections of the text are not deciphered right.

Example:
"as she swam l z}"d~o*dd/y``6� {;/~v_(tb_)uesp4�prxnc(z�icehr,P`(yc'eezm"-ickin_)"

This is the section of the code that I use to decipher it. At this point I already generated the matrix and read the input file. In the encryption code if a and b are equal b is set to NULL, the last if statement checks that. The variable besedilo is the whole text of the file and M is the 16x16 matrix.

In this code, A does not need to be static mut, but the compiler forces B to be static mut:

I am very new to python 3(and python in general), and I have decided to try to make a cypher and decypher in my own way as a personal project. The cypher works by generating a random number and multiplying the letters number value by it. It adds all of these multiplied values into a list and then adding the random number at the end.

Let's say that the list is [1976, 1995, 19]. The user would copy and paste this into the input and press enter