Williammer/javascript.tryCatchTest.html

## javascript.tryCatchTest.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
	<meta property="wb:webmaster" content="edcf77ed05a8765f" />

	<meta name="viewport" content="width=device-width">
<script>
	var ErrorOverLimit = new Error('>= 31.');
	var ErrorMsg = new Error('invalid time.');

	function prettyDate(time){
    var date = new Date(time || ""),
      diff = (((new Date()).getTime() - date.getTime()) / 1000),
      day_diff = Math.floor(diff / 86400);
	if(day_diff >= 31) {
		throw ErrorOverLimit;
		return;
	} else if ( isNaN(day_diff) || day_diff < 0  ){
		throw ErrorMsg;
		return;
	}
    return day_diff == 0 && (
        diff < 60 && "just now" ||
        diff < 120 && "1 minute ago" ||
        diff < 3600 && Math.floor( diff / 60 ) +
          " minutes ago" ||
        diff < 7200 && "1 hour ago" ||
        diff < 86400 && Math.floor( diff / 3600 ) +
          " hours ago") ||
      day_diff == 1 && "Yesterday" ||
      day_diff < 7 && day_diff + " days ago" ||
      day_diff < 31 && Math.ceil( day_diff / 7 ) +
        " weeks ago";
  }

  window.onload = function() {
    var links = document.getElementsByTagName("a");
    for ( var i = 0; i < links.length; i++ ) {
      if ( links[i].title ) {
		try {
			var date = prettyDate(links[i].title);
		} catch(e){
			console.log('Error:'+e.message);
		}
        if ( date ) {
          links[i].innerHTML = date;
        }
      }
    }
  };
  </script>
</head>
<body>

<ul>
  <li class="entry">
    <p>blah blah blah...</p>
    <small class="extra">
      Posted <span class="time">
        <a href="/2008/01/blah/57/" title="2008-01-28T20:24:17Z">
          <span>January 28th, 2008</span>
        </a>
      </span>
      by <span class="author"><a href="/john/">John Resig</a></span>
    </small>
  </li>
  <!-- more list items -->
</ul>

</body>
</html>
	<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
	<meta property="wb:webmaster" content="edcf77ed05a8765f" />

	<meta name="viewport" content="width=device-width">
	<script>
	var ErrorOverLimit = new Error('>= 31.');
	var ErrorMsg = new Error('invalid time.');

	function prettyDate(time){
	var date = new Date(time \|\| ""),
	diff = (((new Date()).getTime() - date.getTime()) / 1000),
	day_diff = Math.floor(diff / 86400);
	if(day_diff >= 31) {
	throw ErrorOverLimit;
	return;
	} else if ( isNaN(day_diff) \|\| day_diff < 0 ){
	throw ErrorMsg;
	return;
	}
	return day_diff == 0 && (
	diff < 60 && "just now" \|\|
	diff < 120 && "1 minute ago" \|\|
	diff < 3600 && Math.floor( diff / 60 ) +
	" minutes ago" \|\|
	diff < 7200 && "1 hour ago" \|\|
	diff < 86400 && Math.floor( diff / 3600 ) +
	" hours ago") \|\|
	day_diff == 1 && "Yesterday" \|\|
	day_diff < 7 && day_diff + " days ago" \|\|
	day_diff < 31 && Math.ceil( day_diff / 7 ) +
	" weeks ago";
	}

	window.onload = function() {
	var links = document.getElementsByTagName("a");
	for ( var i = 0; i < links.length; i++ ) {
	if ( links[i].title ) {
	try {
	var date = prettyDate(links[i].title);
	} catch(e){
	console.log('Error:'+e.message);
	}
	if ( date ) {
	links[i].innerHTML = date;
	}
	}
	}
	};
	</script>
	</head>
	<body>

	<ul>
	<li class="entry">
	<p>blah blah blah...</p>
	<small class="extra">
	Posted <span class="time">
	<a href="/2008/01/blah/57/" title="2008-01-28T20:24:17Z">
	<span>January 28th, 2008</span>
	</a>
	</span>
	by <span class="author"><a href="/john/">John Resig</a></span>
	</small>
	</li>
	<!-- more list items -->
	</ul>

	</body>
	</html>