UserInputService Isn't working for shift keybind

[StarJ3M]

local UIS = game:GetService("UserInputService")

local LShiftonHold = false

UIS.InputBegan:Connect(function(input, gameProccessEvent)
	if input.KeyCode == Enum.KeyCode.LeftShift then
		LShiftonHold = true
	end
end)

UIS.InputEnded:Connect(function(input, gameProccessEvent)
	if input.KeyCode == Enum.KeyCode.LeftShift then
		LShiftonHold = false
	end
end)


while LShiftonHold == true do
	wait()
	script.Parent:WaitForChild("Humanoid").WalkSpeed = 100
end

[rabbi99 (Stellar)]

Remember that while loops only run once and break once. Your loop does not run at all because no matter what, LSiftonHold is false when the condition “LSiftonHold == true” is checked. So the loop will not run at all. There’s a simple fix for this! You just run the loop whenever LSiftonHold is on. So, like this:

local UIS = game:GetService("UserInputService")

local LShiftonHold = false

UIS.InputBegan:Connect(function(input, gameProccessEvent)
	if input.KeyCode == Enum.KeyCode.LeftShift then
		LShiftonHold = true
		while LShiftonHold == true do
			wait()
			script.Parent:WaitForChild("Humanoid").WalkSpeed = 100
		end
	end
end)

UIS.InputEnded:Connect(function(input, gameProccessEvent)
	if input.KeyCode == Enum.KeyCode.LeftShift then
		LShiftonHold = false
	end
end)