title: JQuery Syntax for function mean
body: <p>What does this Jquery Syntax mean ? </p>
  
  <pre><code>!function ($) {
  
  //function code here
  
  }
  </code></pre>
  
  <p>The function starts with a '!' and also doese`nt have a name.</p>
  
  <p>can i get an explanation ?</p>