Hello im new to coding in java script. I get this error on my code: UCE0001 ';' expected insert a semicolon at the end.

My code:

pragma strict

var rotationspeed = 80; var jumpheight = 7;

private var isfalling = false;

function Update () { //Flyttar bollen sidleds var rotation : float = Input.GetAxis ("Horizontal") rotationspeed; rotation = Time.deltaTime; rigidbody.AddRelativeTorque (Vector3.back * rotation);

 if (Input.GetKeyDown (KeyCode.UpArrow) && isfalling == false)
 {
 rigidbody.velocity.y = jumpheight;
 function (OnCollisionExit) 

 isFalling = true

}

function (OnCollisionStay)

 isfalling = false;

}