how to send data from a local script to a public script roblox code example

Example: what do you need local sccripts for

A LocalScript is a Lua source container that runs Lua code on a client connected to a Roblox server. They are used to access client-only objects, such as the player's Camera . For code run through LocalScripts, the LocalPlayer property of the Players service will return the player whose client is running the script.