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How to convert an Array to a Set in Java
...n Java 10+, the generic type parameter can be inferred from the arrays component type:
var mySet = Set.of(someArray);
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How do I convert a dictionary to a JSON String in C#?
...convert my Dictionary<int,List<int>> to JSON string. Does anyone know how to achieve this in C#?
13 Answers
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How to check if all list items have the same value and return it, or return an “otherValue” if they
...val) ? val : otherValue;
Cleanest way I can think of. You can make it a one-liner by inlining val, but First() would be evaluated n times, doubling execution time.
To incorporate the "empty set" behavior specified in the comments, you simply add one more line before the two above:
if(yyy == nu...
Spring Test & Security: How to mock authentication?
...st if my the URLs of my controllers are properly secured. Just in case someone changes things around and accidentally removes security settings.
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What does jQuery.fn mean?
... here is a simple example of that. Lets say I want to make two extensions, one which puts a blue border, and which colors the text blue, and I want them chained.
jsFiddle Demo
$.fn.blueBorder = function(){
this.each(function(){
$(this).css("border","solid blue 2px");
});
return this;
};
$.fn....
What's the use of ob_start() in php?
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Great explanation. I would go one step further and replace ob_get_contents() with ob_get_clean() and remove ob_end_clean() since ob_get_clean() essentially performs both functions. Reference: php.net/manual/en/function.ob-get-clean.php (PHP 4 >= 4.3.0,...
How to empty a list in C#?
...e Google queries lists a bundle of links, but typically you want the first one that google gives you in each case.
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Getting exact error type in from DbValidationException
...itializer() for EF 4.1 and get this annoying error "Validation failed for one or more entities. See 'EntityValidationErrors' property for more details." So, I go to this EntityValidationErrors and there is a field {System.Data.Entity.Validation.DbEntityValidationResult} which gives me no informa...
How can I create Min stl priority_queue?
The default stl priority queue is a Max one (Top function returns the largest element).
8 Answers
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How do I revert a Git repository to a previous commit?
...ts
If, on the other hand, you want to really get rid of everything you've done since then, there are two possibilities. One, if you haven't published any of these commits, simply reset:
# This will destroy any local modifications.
# Don't do it if you have uncommitted work you want to keep.
git rese...