title: Why Jquery selector by 'value' not work in case of dynamic change
body: <p>I'm not sure why jquery selector <code>value</code> not work, Trying to change the value of inputs to <code>"a"</code> but the <code>length</code> not increment, please check the simple example bellow:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
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  <pre class="snippet-code-js lang-js prettyprint-override"><code>$('body').on('input', '.example', function() {
    $('#result').text($('.example[value="a"]').length);
  });</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"&gt;&lt;/script&gt;
  &lt;input type="text" class="example" value="a"&gt;
  &lt;input type="text" class="example" value="b"&gt;
  &lt;input type="text" class="example" value="c"&gt;
  
  &lt;div id='result'&gt;&lt;/div&gt;</code></pre>
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  </p>