Hey Guys, I been looking through the manual on how to set up scripts in gamemaker. I get the normal way to set up a script, but I know there's this notation stuff at the top.

/// @function                init_enemy();
/// @description             Initialise enemy instance vars

Is there a tutorial for that. I can't seem to find any information about it. I found this... https://help.yoyogames.com/hc/en-us/articles/360005277377

{index} {real} , So what are all the possible parameters. I feel like this stuff isn't documented completely or I'm looking in the wrong places because I've been watching videos too, and I still can't find a good lead. It seems like I have no choice, but to ask at this point.

Edit: Forgot to attach this

https://manual.yoyogames.com/GameMaker_Language/GML_Overview/Script_Functions.htm

Also previously scripts used this

function Script(argument0) {

var _change = argument0;

I've seen people not put var in their scripts. is that just the way to do it now