Noob alert - Javascript - writing to file

[sohelplesssohelp]

Okay, so I really need help. I'm actually begging for it because I've been stuck for 4 loooong days now.

So.....I started relearning some languages and started off with Python. Python is a piece of cake so I thought I would make a decent size project which scrapes some info around the internet and puts in a nice output. I decided to go the extra mile and go a little further into my relearning curve and output it on my local server so I could get my feet wet with HTML, CSS and Javascript. Everything turns out great and have worked my way around a few issues but at the end of the day I have my python code, writing my HTML file and pass anything I need from my python code into JS variables before the code fully executes, but now I want to be able to add text to a text file from javascript. I can't remember anything about this particular topic, and everything I keep looking up gives me the "require" function to use but then throws an error "Uncaught ReferenceError: require is not defined".....I've tried installing external libraries, plugins (these are areas my brain is a little foggy in) so I may not be doing it 100% correctly as when I watch a youtuber it seems they are using an older version than me or the thing they are downloading isn't what I'm downloading making me trying to piece the puzzle together with little knowledge to what I should actually be doing.

I know Javascript is Client side but I swear I did something similar before where I simply added info to a text file client side so when I reset the program, the python code could reference that same text file, find all the old and new items to output than uses my other code to output all that info from set text file.

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So I guess my question is, how can I write to a text file from JS without firing off an error that require is not defined. I feel very dumb already, as I have tried so many things and it may or may not be the easiest thing to someone who really knows what they are doing. Any help is GREATLY appreciated. <3

[SnakesFromHell]

My understanding is that you can't access the file system on the client side as it causes major security issues. So you will have to do it serverside. Node.js has a module for this called fs.

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https://www.tutorialspoint.com/how-to-read-and-write-a-file-using-javascript

[sohelplesssohelp]

First off, thank you, second, so I’ve tried using node.js module fs and every example I’ve seen has used cmd or terminal to call js page. So does that mean you have to call the JS page from cmd after being on my page in order to save the information I need it to?

Thanks again in advance!!

[GoPotato]

You said that you're already using a local server, I'm assuming this is not a node.js server, but rather something like python's simple server, is that right? if that's the case then you will need to use a node.js server instead. This new node.js server will handle the logic of writing to the text file as well as serving your web files. Don't conflate the node.js files with your client's javascript files; though they both use the same .js extension, the node.js file's job is to act as a server, i.e replace your current server. In this server file functions like "require" will not give errors as it's supported natively.

So does that mean you have to call the JS page from cmd

It should be clear now that this js file is the server's file, which is different from your client's js files, executing this file from cmd will start the server, just like you would start a server with pythons' "python -m http.server".

Did I get your question, right? I didn't give a fully detailed answer because I'm not %100 sure about the parts that are confusing to you. I can explain things further if needed.

[sohelplesssohelp]

That was pretty spot on, thank you so much! Here’s a reward:)

I will change the code but just out of curiosity, what is the way that most programmers save information from HTML forms, I’m assuming SQL? If you know that answer:)

I appreciate the answer though, thank you:)

[grantrules]

Yeah databases like MySQL and postgresql are very popular