flip player to correct direction unity 2d code example

Example: how to make player flip when pressing a d unity 2d

void  Update ()
    {  //This short code makes player flip when the A and D or arrow keys are pressed.

        Vector3 charecterScale = transform.localScale;
        if (Input.GetAxis("Horizontal") < 0)
        {
            charecterScale.x = -10;
        } 
        if (Input.GetAxis("Horizontal") > 0)
        {
            charecterScale.x = 10;
        }
        transform.localScale = charecterScale;
    }