title: Magento2 - How to trigger onchange event on Country in Shipping Address
body: <p>I am newbie to Magento2 framework. I want to customize checkout page where I can add my jQuery on change event on country field, so whenever I change my country field option few rest of fields like city, zip/Post Code, Address and province change and I can set length of maximum characters dynamically.<br />
  I have also created a custom module in <code>app/code/customshipping/shipping</code> containing the files <code>view/frontend</code> with layout folder containing <code>layout/checkout_index_index.xml</code> where I just added few code in order to add custom attributes to field.</p>
  
  <p>I am following: <a href="http://devdocs.magento.com/guides/v2.0/howdoi/checkout/checkout_customize.html" rel="nofollow noreferrer">http://devdocs.magento.com/guides/v2.0/howdoi/checkout/checkout_customize.html</a></p>
  
  <pre><code>&lt;?xml version="1.0"?&gt;
  &lt;page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd"&gt;
      &lt;body&gt;
          &lt;referenceBlock name="checkout.root"&gt;
              &lt;arguments&gt;
               // do something here......
              &lt;/arguments&gt;
          &lt;/refernceBlock&gt;
       &lt;/body&gt;
  &lt;/page&gt;
  </code></pre>