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How to call asynchronous method from synchronous method in C#?
...doesn't need to synchronize back to its context, then you can use Task.WaitAndUnwrapException:
var task = MyAsyncMethod();
var result = task.WaitAndUnwrapException();
You do not want to use Task.Wait or Task.Result because they wrap exceptions in AggregateException.
This solution is only appropriat...
Need a simple explanation of the inject method
...umulator: the result of each run of the block is stored in the accumulator and then passed to the next execution of the block. In the case of the code shown above, you are defaulting the accumulator, result, to 0. Each run of the block adds the given number to the current total and then stores the r...
Sort a list by multiple attributes?
...1], x[2]))
Or you can achieve the same using itemgetter (which is faster and avoids a Python function call):
import operator
s = sorted(s, key = operator.itemgetter(1, 2))
And notice that here you can use sort instead of using sorted and then reassigning:
s.sort(key = operator.itemgetter(1, 2)...
Is it good practice to NULL a pointer after deleting it?
I'll start out by saying, use smart pointers and you'll never have to worry about this.
18 Answers
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How to sum up elements of a C++ vector?
...tor.begin(); it != vector.end(); ++it)
sum_of_elems += *it;
Using a standard algorithm:
#include <numeric>
sum_of_elems = std::accumulate(vector.begin(), vector.end(), 0);
Important Note: The last argument's type is used not just for the initial value, but for the type of the resu...
Does Javascript pass by reference? [duplicate]
...out my parameter for the rectangle function. It is actually undefined , and redefined inside the function. There are no original reference. If I remove it from the function parameter, the inside area function is not able to access it.
...
Mimicking sets in JavaScript?
... you can use the Set object built into ES6. It has very nice capabilities and can be used as is right in your environment.
For many simple things in an ES5 environment, using an Object works very well. If obj is your object and A is a variable that has the value you want to operate on in the set,...
How do I use Notepad++ (or other) with msysgit?
... to work with Git on Windows?", I prefer a wrapper, as it is easier to try and switch editors, or change the path of one editor, without having to register said change with a git config again.
But that is just me.
Additional information: the following solution works with Cygwin, while the zuamlif...
What's the difference between $evalAsync and $timeout in AngularJS?
I've been using AngularJS for a little while now, and have found the need to use $timeout every once in a while (Seems to usually be to init a jQuery plugin).
...
Spring MVC: How to perform validation?
I would like to know what is the cleanest and best way to perform form validation of user inputs. I have seen some developers implement org.springframework.validation.Validator . A question about that: I saw it validates a class. Does the class have to be filled manually with the values from the us...