How could i make a script that increases the jumpheight of a player by 1 every 10s?

Correct me if I'm wrong but I believe the client has control over their character including WalkSpeed, JumpPower, Velocity, etc...

local player = game.Players.LocalPlayer
while true do
    local char = player.Character or player.CharacterAdded:Wait()
    if char then
        local humanoid = char:FindFirstChild("Humanoid")
        if humanoid then
            humanoid.JumpPower = humanoid.JumpPower + 1
        end
    end
    wait(10)
end

Essentially we have created a loop that will run forever and will add 1 to their current jump power every 10 seconds I don't know why someone would want to do this exactly.

If the client doesn't have control over jump power you can essentially do the same thing on the server using remote events etc... Good luck!

• Best Regards, -Syn

local Player = game.Players.LocalPlayer

spawn(function()
    while wait(10) do
        if Player.Character then
            local Humanoid = Player.Character:WaitForChild('Humanoid')
            Humanoid.JumpPower = Humanoid.JumpPower + 1
        end
    end
end)

i highly reccommend NOT doing this on a client, as a hacker/exploiter could easily change how high you can jump which is cheating. you should do it on the server instead

spawn(function()
    script.Name = "SV_JumpPower_Script"
    for _,player in ipairs(game.Players:GetPlayers()) do
        coroutine.resume(coroutine.create(function() -- Do this so it dosent stop at the first player
            while wait(10) do
                local Character = player.Character
                local Humanoid = Character:FindFirstChildOfClass("Humanoid")
                if Character and Humanoid then
                   Humanoid.JumpPower = Humanoid.JumpPower + 1
                end
            end
        end))
    end
end)