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<!DOCTYPE html>
<html>
<head>
<script class="jsbin" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<meta charset=utf-8 />
<title>Test Page</title>
<!--[if IE]>
  <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<style>
  article, aside, figure, footer, header, hgroup, 
  menu, nav, section { display: block; }
  body {
    font-family: sans-serif;
  }
  p {
    margin: 0px;
  }
</style>
</head>
<body>
  <div id='target' style='width: 20em'>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras sagittis nunc non nisi venenatis auctor. Aliquam consectetur pretium sapien, eget congue purus egestas nec. Maecenas sed purus ut turpis varius dictum. Praesent a nunc ipsum, id mattis odio. Donec rhoncus posuere bibendum. Fusce nulla elit, laoreet non posuere.</div>
</body>
</html>
 
var str = "Hello m|sss sss|mmm ss";
//Now i separate them by "|"
    var str1 = str.split('|');
​
 //Now i want to get the first word of every split-ed sting parts:
​
var firstWords = [];
for (var i=0;i<str1.length;i++)
{
  var codeLine = str1[i];
  var firstWord = codeLine.substr(0, codeLine.indexOf(" "));
  firstWords.push(firstWord);
}
​
alert(firstWords[1]);
Output

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