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center aligning a fixed position div
...he 50% of the page. But you have to keep in mind that it moves it starting from the left side of the div, therefore the div is not centered yet. translate(-50%, 0) which is basically translateX(-50%) considers the current width of the div and moves it by -50% of its width to the left side from the a...
Difference between \n and \r?
...motely), \n is the standard escape sequence for end of line (translated to/from OS-specific sequences as needed)
in old Mac systems (pre-OS X), \r was the code for end-of-line instead
in Windows (and many old OSs), the code for end of line is 2 characters, \r\n, in this order
as a (surprising;-) con...
Why not use exceptions as regular flow of control?
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Example : when I debug a .net program, I launch it from visual studio and I ask VS to break on all exceptions. If you rely on exceptions as an expected behaviour, I can't do that anymore (since it would break 5times/sec), and it's far more complicated to locate the problemati...
How to change ViewPager's page?
...in the main Activity. Inside onCreate method I load some number of pages from SharedPreferences and then pass it to PagerAdapter:
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What are the rules for evaluation order in Java?
...Greenie: Eric's answer is true, but as I stated you cannot take an insight from one language in this area and apply it to another without being careful. So I cited the definitive source.
– Donal Fellows
Aug 16 '11 at 18:53
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Why are #ifndef and #define used in C++ header files?
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This prevent from the multiple inclusion of same header file multiple time.
#ifndef __COMMON_H__
#define __COMMON_H__
//header file content
#endif
Suppose you have included this header file in multiple files. So first time
__COMMON_H_...
Regular Expression to match only alphabetic characters
...de letters then use:
/^\p{L}+$/u
Here, \p{L} matches any kind of letter from any language
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How to use a RELATIVE path with AuthUserFile in htaccess?
...unes the deployed files to their environment. This decouples your codebase from the specifics of its target environment (i. e. its environment variables and configuration parameters). In general, the application should adapt to the environment, if you do it the other way around, you might run into p...
AngularJS: How to run additional code after AngularJS has rendered a template?
I have an Angular template in the DOM. When my controller gets new data from a service, it updates the model in the $scope, and re-renders the template. All good so far.
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The calling thread must be STA, because many UI components require this
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Try to invoke your code from the dispatcher:
Application.Current.Dispatcher.Invoke((Action)delegate{
// your code
});
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