Input.GetAxisRaw

static function GetAxisRaw (axisName : String) : float

Description

Returns the value of the virtual axis identified by axisName with no smoothing filtering applied.

The value will be in the range -1...1 for keyboard and joystick input. Since input is not smoothed, keyboard input will always be either -1, 0 or 1. This is useful if you want to do all smoothing of keyboard input processing yourself.

JavaScript
    function Update () {
var speed : float = Input.GetAxisRaw("Horizontal") * Time.deltaTime;
transform.Rotate (0, speed, 0);
}

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Update() {
float speed = Input.GetAxisRaw("Horizontal") * Time.deltaTime;
transform.Rotate(0, speed, 0);
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Update():
speed as single = (Input.GetAxisRaw('Horizontal') * Time.deltaTime)
transform.Rotate(0, speed, 0)