Sure - but in the real world that mostly only happens when the documentation is an afterthought.

Here’s a tip on good documentation: try to write the documentation first. Use it as your planning process, to spec out exactly what you’re going to build. Show the code to people (on GitHub or on a mailing list or on lemmy or whatever), get feedback, change the documentation to clarify any misunderstandings and/or add any good ideas people suggest.

Only after the docs are in a good state, then start writing the code.

And any time you (or someone else) finds the documentation doesn’t match the code you wrote… that should usually be treated as a bug in the code. Don’t change the documentation, change the code to make them line up.

Have they released who is going to pay for these power plants? Because if they put it on my monthly bill, I’m going off grid and I bet half the rest of the country will too.

Sure - for example we migrated all our stuff from MySQL to MariaDB.

It was completely painless, because all of the source code and many of the people who wrote that code migrated to MariaDB at the same time. They made sure the transition was effortless. We spent a months second guessing ourselves, weighing all of our options, checking and triple checking our backups, verifying everything worked smoothly afterwards… but the actual transition itself was a very short shell script that ran in a few seconds.

I will never use a proprietary database unless it’s one I wrote myself and I’d be extremely reluctant to do that. You’d need a damned good reason to convince me not to pick a good open source option.

My one exception to that rule is Backblaze B2. I do use their proprietary backup system, because it’s so cheap. But it’s only a backup and it’s not my only backup, so I could easily switch.

I’m currently mid transition from MariaDB to SQLite. That one is more complex, but not because we did anything MariaDB specific. It’s more that SQLite is so different we have a completely different database design (for one thing, we have hundreds of databases instead of just one database… some of those databases are less than 100KB - the server just reads the whole thing into RAM and slow queries on our old monolithic database are less than 1 millisecond with this new system).

never use anything vendor specific like stored procedures, vendor specific datatypes or meta queries

Yeah we don’t do anything like that. All the data in our database is in a JSON type (string, number, boolean, null) with the exception of binary data (primarily images). It doesn’t even distinguish between float/int - though our code obviously does. All of the queries we run are simple “get this row by primary key” or "find all rows matching these simple where clauses. I don’t even use joins.

Stored procedures/etc are done in the application layer. For example we don’t do an insert query anywhere. We have a “storage” object with simple read/write functions, and on top of that there’s an object for each model. That model does all kinds of things, such as writing the same data in different places (with different indexes) and catching “row not found” failures with an “ok, lets check if it’s in this other place”. That’s also the layer we do constraints which includes complex business rules, such as “even if this data is invalid — we will record it anyway, and flag it for a human to follow up on”.

In my opinion the best developers are “generalists” who know a little bit about everything. For example I have never written a single line of code in the Rust programming language… but I know at a high level all of the major pros and cons of the language. And if I ever face a problem where I need some of those pros/don’t care about the cons then I will learn Rust and start using it for the first time.

There’s not much benefit to diving deep into specialised knowledge on any particular technology because chances are you will live your entire life without ever actually needing that knowledge and if anything, it might encourage you to force a square peg into a round hole - for example “I know how to do this with X, so I’m going to use X even though Y would be a better choice”.

Wikipedia has a list of “notable” programming languages, with 49 languages just under “A” alone and I’ve personally learned and used three of the “A” languages. I dislike all three, and I seriously hope I never use any of them ever again… but at the same time they were the best choice for the task I was trying to achieve and I would still use those languages if I was faced with the same situation again.

That’s nowhere near a complete list - which would probably have a few thousand under “A” alone. I know one more “A” language which didn’t make Wikipedia’s cut.

The reality is you don’t know what technology you need to learn until you actually need it. Even if you know something that could be used to solve a problem, you should not automatically choose that path. Always consider if some other tech would be a better choice.

Since you’re just starting out, I do recommend branching outside your comfort zone and experimenting with things you’ve never done before. But don’t waste time going super deep - just cover the basics and then move on. If there’s a company you really want to work for, and they’re seeking skills you don’t have… then maybe get those skills. But it’s risky - the company might not hire you. Personally I would take a different approach, try to get a different job at the company first then after you’ve got that, start studying and ask your manager if they can help you transfer over to the job you previously weren’t qualified for, but are qualified now. In a well run company they will support you in that.

As for learning outside of your 9-5… you should spend your spare time doing whatever you want. If you really want to spend your evenings and weekends writing code then go ahead and do that… but honestly, I think it’s more healthy long term to spend that time away from a desk and away from computers. I think it would be more productive, long term, to spend that time learning how to cook awesome food or do woodworking or play social football or play music… or of course the big one, find a partner, have kids, spend as much time with them as you can. As much as I love writing code, I love my kid more. A thousand times more.

Programming is a job. It’s a fun job, but it’s still a job. Don’t let it be your entire life.

I fundamentally disagree with the idea that these are competing strategies.

Just like walking doesn’t really compete, like at all, with flying in an aircraft, Functional and Object Oriented Programming are at their best when you use whichever approach makes sense for a given situation and in any reasonably complex software that means your code should be full of both.

OOP is really good at the high level structure of your software as well as efficiently storing data. FP is really good at business logic and algorithms.

Also, I take issue with the claim that OOP is all about “objects”. It’s also about classes. In fact I’d argue classes are more important than objects.

Edit 3: Since this is for newbies, some information about recruiters: we pay the recruiter in addition to what we pay you. The recruiter’s typical pay for a rookie hire is around $50,000.00, if you stay for a full year. Half up front, in case you don’t stay.

On top of that - where I work it takes about six months for a new hire to start carrying their own weight. Until that happens, you’re paying other people to spend time helping the new person find their feet in the company. It’s not just coding either, a lot of it is little things like “who do I talk to when I when the VPN stops working?”

The loss in productivity during that time is often worse than if you’d never hired the person at all. And most new people don’t last six months, so it’s generally a bad investment. One that is only done because if you don’t hire people, you’ll have no workers at all since established employees can’t be expected to work for you forever.

Hiring people is a big risk. Anything you can do to mitigate that risk (evidence that you’re someone they should hire) will increase your chances of being hired exponentially.