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How do I get the opposite (negation) of a Boolean in Python?
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You can just use:
return not bool
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Regular expression for letters, numbers and - _
...racter Classes and Repetition
In PHP
Here's a snippet to show how you can use this pattern:
<?php
$arr = array(
'screen123.css',
'screen-new-file.css',
'screen_new.js',
'screen new file.css'
);
foreach ($arr as $s) {
if (preg_match('/^[\w.-]*$/', $s)) {
print "$s is a match\...
Working with Enums in android
I am almost done with a calculation activity I am working with in android for my app. I try to create a Gender Enum, but for some reason getting Syntax error, insert "EnumBody" to complete EnumDeclaration.
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Get city name using geolocation
I managed to get the user's latitude and longitude using HTML-based geolocation.
11 Answers
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What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet
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This JavaScript should be useless to www.evil.com because there should be no way of reading the object returned by your web method. However, due to bugs in old versions of browsers (e.g. Firefox 3), it is possible for JavaScript prototype objects to be redefined and make it po...
in iPhone App How to detect the screen resolution of the device
...ll give you the entire screen's resolution in points, so it would most typically be 320x480 for iPhones. Even though the iPhone4 has a much larger screen size iOS still gives back 320x480 instead of 640x960. This is mostly because of older applications breaking.
CGFloat screenScale = [[UIScreen mai...
git selective revert local changes from a file
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You can do that directly with git checkout -p. See Daniel Stutzbach's answer below.
Old answer (before checkout -p was introduced):
You can do it like this:
git add -i
(select the hunks you want to keep)
git commit -m "tm...
How to add “active” class to Html.ActionLink in ASP.NET MVC
...ages, it would be smart to have a way to apply that selected class automatically based on the current page rather than copy the menu multiple times and do it manually.
The easiest way is to simply use the values contained in ViewContext.RouteData, namely the Action and Controller values. We could ...
How to limit the maximum value of a numeric field in a Django model?
...odels, e.g. DecimalField and PositiveIntegerField . Although the former can be restricted to the number of decimal places stored and the overall number of characters stored, is there any way to restrict it to storing only numbers within a certain range, e.g. 0.0-5.0 ?
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How do I serialize an object and save it to a file in Android?
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Should there be a call to fos.close() and fis.close() as well?
– IcedDante
Nov 4 '13 at 5:01
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