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LINQ where vs takewhile
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Say you have an array that contains [1, 3, 5, 7, 9, 0, 2, 4, 6, 8]. Now:
var whereTest = array.Where(i => i <= 5); will return [1, 3, 5, 0, 2, 4].
var whileTest = array.TakeWhile(i => i <= 5); will return [1, 3, 5].
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AngularJS : How to watch service variables?
...back){
observerCallbacks.push(callback);
};
//call this when you know 'foo' has been changed
var notifyObservers = function(){
angular.forEach(observerCallbacks, function(callback){
callback();
});
};
//example of when you may want to notify observers
this.foo = someN...
What does Class mean in Java?
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I thought the whole point of a generic is you don't know the class type upfront. Otherwise you would just define a function to use a particular class type for the parameter. This question mark still doesn't make sense.
– Brain2000
Mar 6 ...
Execute AsyncTask several times
...n onResume(). So i made my Asynctask static, and get the instance from it. Now we still have the same problem.
So what i did in the onPostExecute() is this:
instance = null;
Keeping in mind that i check in the static getInstance method that my instance isn't null, else i create it:
if (instanc...
Disabling Strict Standards in PHP 5.4
..., which means that my previous setting for error_reporting does not work now. My previous value was E_ALL & ~E_NOTICE & ~E_STRICT Should I just enable values one at a time?
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How to use R's ellipsis feature when writing your own function?
...st.
A valid use case for this is in cases where you want to pass in an unknown number of objects for operation (as in your example of c() or data.frame()). It's not a good idea to use the ... when you know each parameter in advance, however, as it adds some ambiguity and further complication to th...
How to hide databases that I am not allowed to access
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I'm using pgAdmin 4 now and DB restriction works great.
– AskYous
Nov 22 '17 at 21:42
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Threading in a PyQt application: Use Qt threads or Python threads?
...ode executed within the context of a QT thread still acquires the GIL, and now you have to manage two sets of logic for locking your code.
In the end, both QT threads and Python threads are wrappers around system threads. Python threads are marginally safer to use, since those parts that are not wr...
Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
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tidyverse solutions now moved to the top.
– Aaron left Stack Overflow
Oct 11 '19 at 17:34
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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
....5) Execute Redirection: Any redirection that was discovered in phase 2 is now executed.
The results of phases 4 and 5 can impact the redirection that was discovered in phase 2.
If the redirection fails, then the remainder of the command is aborted. Note that failed redirection does not set ERRORL...