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How to count certain elements in array?
... use a function as the body of the loop anyway if you need to capture or clone your iteration index or value. For-loops are more efficient generally, but sometimes you need a closure.)
The most readable way:
[....].filter(x => x==2).length
(We could have written .filter(function(x){return x==...
Multiple working directories with Git?
...ry can support multiple working trees, allowing you to check out more than one branch at a time.
With git worktree add, a new working tree is associated with the repository.
This new working tree is called a "linked working tree" as opposed to the "main working tree" prepared by "git init" or "git...
Equivalent C++ to Python generator pattern
... State { unsigned i, j; };
State make();
void next(State&);
bool isDone(State const&);
Of course, we wrap this as a proper class:
class PairSequence:
// (implicit aliases)
public std::iterator<
std::input_iterator_tag,
std::pair<unsigned, unsigned>
...
Mock framework vs MS Fakes frameworks
...the stub objects, I think this obscures the clarity of the tests). To be honest the NMock implementation also bugs me because it uses a string to identify the method name. (Forgive me if I've misunderstood how NMock is intended to be used.) This approach really inhibits refactoring and I'd highly...
What are dictionary view objects?
... as well. This feature can be useful in some circumstances (for instance, one can work with a view on the keys in multiple parts of a program instead of recalculating the current list of keys each time they are needed)—note that if the dictionary keys are modified while iterating over the view, h...
How do I decode a URL parameter using C#?
...ng decodedUrl = HttpUtility.UrlDecode(url)
Url is not fully decoded with one call. To fully decode you can call one of this methods in a loop:
private static string DecodeUrlString(string url) {
string newUrl;
while ((newUrl = Uri.UnescapeDataString(url)) != url)
url = newUrl;
...
How to debug template binding errors for KnockoutJS?
...
One thing that I do quite often when there is an issue with what data is available at a certain scope is to replace the template/section with something like:
<div data-bind="text: ko.toJSON($data)"></div>
Or,...
Sound effects in JavaScript / HTML5
...
This is a better answer than the accepted one, as it focuses on the correct solution to the problem (WebAudio API), and the reasons Audio elements aren't a good solution, rather than trying to hack together a bad solution with Audio elements
– A...
Casting vs using the 'as' keyword in the CLR
...n. That throws an exception immediately, which means that no more work is done under incorrect assumptions, and the exception correctly shows the type of bug.
// This will throw an exception if randomObject is non-null and
// refers to an object of an incompatible type. The cast is
// the best code...
How can I permanently enable line numbers in IntelliJ?
... @user3218743 and @SamuelKerrien It depends on which of the one of the show line numbers you select. There is one which turns it on/off temporary and one which changes settings (with an on/off toggle at end of line)
– osundblad
Apr 28 '16 at 7:11...