Yeah line numbers got thrown out as a whole. Code is still followed in sequential order, but instead of GOTO we now have functions that we call for reusable operations, and those functions can have parameters sent to them. So like you can set up a function that adds a line of text to a log file, then call the function with a variable containing that text. I honestly can't remember if we had something like that in the early versions of BASIC. Overall I felt it made things a lot easier when line numbers were dropped, especially when you wanted to add more code in the middle of an existing block so you weren't forced to renumber everything to make room.

I think the biggest change to wrap my head around was the elimination of the GOTO statement. This seemed like such a mistake at first, but it turns out that if you wrap things within conditional expressions (if-then and do-while are typical) then you really don't need GOTO jumping all over the place and it tends to keep specific operations more self-contained which leads to the code being easier to read through.

If you want to see some examples of more modern code, take a look at something for PHP. This code felt most at home to me when I moved away from BASIC and is one of the few that still uses the $ symbol to denote variable names. Loops and conditionals are enclosed in {curly braces} so instead of the old for i$=1 to 5:<code here>:next loop you would see something like for($i=1; $i<=5; $i++){<code here>} and you just add as many lines as you need in between them. This is where indenting your code became popular, because if you have a lot of nested conditionals/loops it's easy to lose your place. The indents give you a reference of which code is part of which loops. Overall things have changed quite a bit, but at the core of it your code is still following a specific order to get things done.