roblox how to get character from playerid code example

Example 1: roblox get player character

--LOCAL SCRIPT
local char = game.Players.LocalPlayer.Character or game.Players.LocalPlayer.CharacterAdded:Wait()

Example 2: get player id from character roblox

local Players = game:GetService("Players")
local function getPlayerByUserId(userId)
	for _, player in pairs(Players:GetPlayers()) do
		if player.UserId == userId then
			return player
		end
	end
end