How can I disable jumping?

I know there's a way to do it with the jumped event, but I'd like to know how to do it by disabling the spacebar, if possible.

Disabling the Jump from a Player is Possible, But this can only be operated from a LocalScript. First Step we will use the Changed event so if the Jump is activated it will automaticly switch it to false, The Change event fires whenever an Object has a change, example:

object=workspace.BasePlate

object.Changed:connect(function()
	print("Changed")
end)

Now when I removed the baseplate(from test) the output Printed:

Changed

Now lets create your script.

humanoid=game.Players.LocalPlayer.Character.Humanoid-- Humanoid

humanoid.Changed:connect(function()--Thats pretty much it.
	humanoid.Jump=false
end)

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