Unity 2D C# Jump On Click

C# script to make GameObject jump on pressed mouse button in 2D.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

// ? 2017 TheFlyingKeyboard and released under MIT License
// theflyingkeyboard.net

public class JumpOnClick : MonoBehaviour {
    public float jumpForce;
    public float timeBetweenJumps;
    private float timeBetweenJumpsCount;

    private Rigidbody2D myRigidbody2D;
    private bool canJump;
    private bool isGrounded;

    // Use this for initialization
    void Start () {
        myRigidbody2D = GetComponent<Rigidbody2D>();

        canJump = true;
        isGrounded = true;
        timeBetweenJumpsCount = timeBetweenJumps;
    }
  
    // Update is called once per frame
    void Update () {
      if (Input.GetMouseButtonDown(0) && canJump && isGrounded)
        {
            myRigidbody2D.AddForce(Vector2.up * jumpForce);
            canJump = false;
            isGrounded = false;
        }

        if (!canJump)
        {
            timeBetweenJumps -= Time.deltaTime;
            
            if(timeBetweenJumps <= 0.0f)
            {
                timeBetweenJumps = timeBetweenJumpsCount;
                canJump = true;
            }
        }
    }

    void OnCollisionEnter2D(Collision2D other)
    {
        if (other.gameObject.CompareTag("Ground"))
        {
            isGrounded = true;
        }
    }
}