Add a "Terms and conditions" checkbox

Adding a "terms and conditions" checkbox to your cart page Split theme:

1. From your Shopify admin, go to Online Store > Themes.click Actions > Edit code.
2. In the Assets directory, click js_main.js file (or js_main.min.js file if you are using an older theme version).
3. At the bottom of the file, paste the following code: 

 $(document).ready(function() {
    $('#section-cart').on('click', '[name="checkout"]', function() {
      if ($('#section-cart #agree').is(':checked')) {
        $(this).submit();
      }
      else {
        alert("You must agree with the terms and conditions of sales to check out.");
        return false;
      }
    }); 
  $('#site-cart').on('click', '[name="checkout"]', function() {
      if ($('#site-cart #agree').is(':checked')) {
        $(this).submit();
      }
      else {
        alert("Please first agree with the terms and conditions of sales to check out.");
        return false;
      }
    });
  });
	

4. Click Save.
5. In the Snippets directory, click cart-form.liquid find the HTML code for your cart total:

      <p id="CartTotal">{{ 'cart.total' | t }} <span>{{ cart.total_price | money }}</span></p>
      <small>{{ 'cart.shipping_at_checkout' | t }}</small>

On a new line below the cart total, paste the following code:

<p style="float: none; text-align: left; clear: both; margin: 10px 0;">
  <input style="float:none; vertical-align: middle;" type="checkbox" id="agree" />
  <label style="display:inline; float:none" for="agree">
    I agree with the <a href="/pages/terms-and-conditions">terms and conditions</a>.
  </label>
</p>
	

6. Within the code you just pasted, replace /pages/terms-and-conditions with the URL of your terms and conditions page.

   Note: You will need to  create a terms and conditions page if it doesn't already exist.

7. Click Save.