title: why this single charactor has 122 byte?
body: <p>I meet a stange charactor,It has 122 bytes.</p>
  
  <pre><code>    &lt;script&gt;
      var pig ="ฏ๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎ํํํํํํํํํํํํํํํํํํํํํํํํํํํํํํํํํํ";
      alert(pig.length) ;
      &lt;/script&gt;
  </code></pre>
  
  <p>The result is 122! oh,my god.
  It make the web page disordered.</p>