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C default arguments
...h between a missing value and
zero. In my experience, this is something to watch out for, but can be taken care of as
the need arises---half the time your default really is zero.
I went through the trouble of writing this up because I think named arguments and defaults
really do make coding in C e...
Change the URL in the browser without loading the new page using JavaScript
...opState on browsers that support it. On the others I set the hash and only watch the hashchange in supporting browsers. This leaves IE<=7 without history support, but with usefull permalink. But who cares for IE<=7 history?
– Irae Carvalho
Feb 9 '11 at 22...
How do I give text or an image a transparent background using CSS?
...ime I checked, the second CSS variation does not work in Opera.
Things to watch out for:
Floating elements inside of the cont layer will not be contained. You'll need to make sure they are cleared or otherwise contained, or they'll slip out of the bottom.
Margins go on the pane element and paddin...
Android: AsyncTask vs Service
... It is interesting that in this talk from Google I/O in 2010 youtube.com/watch?v=xHXn3Kg2IQE the presenter gives 3 different methods for getting data from a REST API and the first one uses a service. I'm not an Android expert but I was also under the impression that what Computerish said is basica...
How does the getView() method work when creating your own custom adapter?
...ll the best walk-through on list views in my mind.
http://www.youtube.com/watch?v=wDBM6wVEO70
It inflates layouts (the xml files on your res/layout/ folder) into java Objects such as LinearLayout and other views.
Look at the video, will get you up to date with whats the use of the convert view, b...
One DbContext per web request… why?
...n that case the transient lifestyle is fine, but there are a few things to watch:
Since every object gets its own instance, every class that changes the state of the system, needs to call _context.SaveChanges() (otherwise changes would get lost). This can complicate your code, and adds a second re...
ios app maximum memory budget
...
You should watch session 147 from the WWDC 2010 Session videos. It is "Advanced Performance Optimization on iPhone OS, part 2".
There is a lot of good advice on memory optimizations.
Some of the tips are:
Use nested NSAutoReleasePool...
Get first key in a (possibly) associative array?
... returns it:
$first_value = reset($array);
There is one special case to watch out for though (so check the length of the array first):
$arr1 = array(false);
$arr2 = array();
var_dump(reset($arr1) === reset($arr2)); // bool(true)
...
How to get div height to auto-adjust to background size?
...
Indeed awesome! Just for future generations watching this answer, if you are using compass (scss), I created a mixin from this using their helper functions to do the calculations for you: @mixin div-same-size-as-background-img($url) { background-image: url($url); ...
Text editor to open big (giant, huge, large) text files [closed]
... fork of glogg, its main feature is regular expression search. It can also watch files, allows the user to mark lines, and has serious optimizations built in. But from a UI standpoint, it's ugly and clunky.
LogExpert (Windows) – "A GUI replacement for tail." It's really a log file analyzer, not a ...