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Determine if Android app is being used for the first time
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SharedPreferences are maintained during upgrade. So, I assume that when its being upgraded from PlayStore, old value is available. In fact it is applicable for other methods i.e. checking existence of file too. So, shortcut method in that case is to...
Why are there no ++ and -- operators in Python?
...n't needed as much as in other languages. You don't write things like for(int i = 0; i < 10; ++i) in Python very often; instead you do things like for i in range(0, 10).
Since it's not needed nearly as often, there's much less reason to give it its own special syntax; when you do need to increm...
Getting current unixtimestamp using Moment.js
...to get the Unix TimeStamp using Moment.js.
I can find many functions which convert timestamp to date in moment.js.
I know that I can easily get the unix timestamp by using the following JavaScript function: Math.floor(new Date().getTime()/1000) .
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Use of exit() function
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Try using exit(0); instead. The exit function expects an integer parameter. And don't forget to #include <stdlib.h>.
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Determining complexity for recursive functions (Big O notation)
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The time complexity, in Big O notation, for each function:
int recursiveFun1(int n)
{
if (n <= 0)
return 1;
else
return 1 + recursiveFun1(n-1);
}
This function is being called recursively n times before reaching the base case so its O(n), often called line...
Programmatically scroll to a specific position in an Android ListView
...st one tries to set in the middle of list.
– Victor Pinto
May 12 '14 at 18:13
11
smoothScrollToPo...
ASP.NET MVC Custom Error Handling Application_Error Global.asax?
...EM RELATIVE TO WHERE YOUR CSPROJ FILE IS!
var requestControllerName = Convert.ToString(HttpContext.Current.Request.RequestContext?.RouteData?.Values["controller"]);
var requestActionName = Convert.ToString(HttpContext.Current.Request.RequestContext?.RouteData?.Values["action"]);
var co...
How to save a BufferedImage as a File
...outputfile exists. If it doesn't, write() will (incorrectly) throw a NullPointerException
– Cody S
Oct 23 '14 at 18:52
9
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Why should I use IHttpActionResult instead of HttpResponseMessage?
...eturning IHttpActionResult, and my answer demonstrates how you are able to convert the old HttpResponseMessage into an IHttpActionResult so that you can have the best of both worlds.
– AaronLS
May 26 '15 at 0:09
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sizeof single struct member in C
...se it like this:
typedef struct
{
float calc;
char text[255];
int used;
} Parent;
typedef struct
{
char flag;
char text[member_size(Parent, text)];
int used;
} Child;
I'm actually a bit surprised that sizeof((type *)0)->member) is even allowed as a constant expression....