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What does “:=” do?
...
http://en.wikipedia.org/wiki/Equals_sign#In_computer_programming
In computer programming languages, the equals sign typically denotes either a boolean operator to test equality of values (e.g. as in Pascal or Eiffel), whi...
background function in Python
...efile.html', 'w+') as f:
try:
f.write(urllib2.urlopen('http://google.com').read())
except urllib2.HTTPError:
f.write('sorry no dice')
print 'hi there user'
print 'how are you today?'
thread = ImageDownloader(downloads)
thread.start()
while not os.path.exists...
EProgrammerNotFound exception in Delphi?
...n Side of Delphi" session.
IMO, it should be used more often ;-)
Read on:
http://wings-of-wind.com/2010/01/12/best-programming-feature-ever/
http://blog.barrkel.com/2008/11/reference-counted-pointers-revisited.html
PS: I don't think it exists in Delphi Prism, FreePascal or C# (but it should). <...
if…else within JSP or JSTL
...
<%@ taglib prefix='c' uri='http://java.sun.com/jsp/jstl/core' %>
<c:set var="val" value="5"/>
<c:choose>
<c:when test="${val == '5'}">
Value is 5
</c:when>
<c:otherwise>
Value is not 5
</c:otherwise&...
Simple basic explanation of a Distributed Hash Table (DHT)
... introduction that I would essentially be regurgitating if I write more -
http://en.wikipedia.org/wiki/Distributed_hash_table
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Validate that a string is a positive integer
...se
" " : false
"" : false
DEMO: http://jsfiddle.net/5UCy4/37/
Solution 2
Another way is good for all numeric values which are valid up to Number.MAX_VALUE, i.e. to about 1.7976931348623157e+308:
function isPositiveInteger(n) {
return 0 === n % (!is...
preventDefault() on an tag
...lt;/head>
<body>
<div>
<ul>
<li><a href="http://www.google.com">Google</a></li>
<li><a href="http://www.facebook.com">Facebook</a></li>
<p id="p1">Paragraph</p>
</ul>
</div>
<p>By Jefrey Bu...
Adding header for HttpURLConnection
I'm trying to add header for my request using HttpUrlConnection but the method setRequestProperty() doesn't seem working. The server side doesn't receive any request with my header.
...
Rename a file using Java
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Copied from http://exampledepot.8waytrips.com/egs/java.io/RenameFile.html
// File (or directory) with old name
File file = new File("oldname");
// File (or directory) with new name
File file2 = new File("newname");
if (file2.exists())...
Get the current script file name
...
See http://php.net/manual/en/function.pathinfo.php
pathinfo(__FILE__, PATHINFO_FILENAME);
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