How to know what to write in script in every single one in object browser in Roblox Studio?

i want to know how write script every single one in object browser but i don't know where to start and i want to learn hidden script as well like for example:

var1 = game.Players.LocalPlayer var2 = var1:GetMouse()

like this example i try to find (GetMouse) in roblox studio Object Browser but i can't find anywhere so i think it's hidden that's why i want to know where to find those hidden scripts and can you help me how to start learning in every script and what to write in every script like enum or cframe something like that but most of all i want to know every single code of roblox lua coding becuase in youtube i dont know how they start learning it and why they know hidden scripts that can't find in roblox studio object browser and can you teach me how to know what information i learn for making some code like tween service because i know every code in roblox is different and they have different coding statement so that's why im asking where to learn those things and where to find the answer of every hidden code and and where to start when writing different codes in roblox.

The Roblox Studio Object Browser certainly lacks a lot of helpful information, and can also be confusing for new developers to navigate. The Roblox Developer Hub is Roblox's official developer resource. It provides tutorials, videos, recipes, and API documentation, all with clean and easy to use user interface.

If you're new to programming, I recommend heading there. If you're not new to programming, I recommend heading there.

Some additional resources include:

• The online edition of Programming in Lua
• The Lua 5.1 Reference Manual
• AlvinBlox's How To Script On Roblox For Beginners Video Series
• AlvinBlox's How To Make A Roblox Game Video Series

I hope that this helped, good luck!