title: js. splice returns removed item?
body: <p>I am having problem of understanding splice and I want to have help.</p>
  
  <p>Please check the jsfiddle.</p>
  
  <p><a href="http://jsfiddle.net/fantill/TbpWf/1/" rel="noreferrer">http://jsfiddle.net/fantill/TbpWf/1/</a></p>
  
  <pre><code>value = "c, a, b"
  value = value.split(',').splice(1, 1).join(',')
  alert(value);
  </code></pre>
  
  <p>the value is supposed have return <code>'c, b'</code>. </p>
  
  <p>However, it returns <code>'a'</code>;</p>
  
  <p>What is wrong with this method?</p>
  
  <p>Thank you very much.</p>