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How to avoid null checking in Java?
...loping and testing, and disable them in a production environment, although my testing has shown next to no performance impact from assertions.
Not using assertions in this case is OK because the code will just fail, which is what will happen if you use assertions. The only difference is that with ...
Spring MVC: How to perform validation?
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can you tell me what should my servlet.xml should have for this configuration. I want to pass the errors back to the view
– devdar
Aug 31 '12 at 22:58
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How do I modify fields inside the new PostgreSQL JSON datatype?
...pecast to::jsonb
More info : JSON Functions and Operators
You can read my note here
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Permutations in JavaScript?
...ing to me trying to use your function. I keep it in a .js where I have all my "list manipulation function". If I use it with permute([1,2,3]), and later permute([4,5,6]), the output of the later still have the result, output from the first one. Any idea how to fix that ? Many thanks !
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Shortest distance between a point and a line segment
...is very clear and easy to read. The math behind it though, is a little bit mystical. What does the dot-product divided by the length squared really represent, for example?
– user1815201
Sep 27 '13 at 8:37
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How to create a unique index on a NULL column?
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create unique index UIX on MyTable (Column1) where Column1 is not null
– Jørn Schou-Rode
Dec 2 '10 at 14:54
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JavaScript: Class.method vs. Class.prototype.method
...ere you call it.
Consider this example:
// constructor function
function MyClass () {
var privateVariable; // private member only available within the constructor fn
this.privilegedMethod = function () { // it can access private members
//..
};
}
// A 'static method', it's just like a ...
Should I return a Collection or a Stream?
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@MarkoTopolnik Sure. My goal was to address the general API design question, which is becoming a FAQ. Regarding cost, note that, if you don't already have a materialized collection you can return or wrap (OP does, but often there is not one), ma...
What is the difference between Serializable and Externalizable in Java?
..., plus with the explicit interface you can handle inheritance, which means my synchronized sub-class can easily add locking around the the call to writeExternal(). So yeah, Externalizable is still very much relevant, certainly for large or complex objects.
– Haravikk
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How do browsers pause/change Javascript when tab or window is not active?
...e this to reload page every 5 seconds when browser is minimized ?, here is my question.
– shaijut
Jul 14 '16 at 15:43
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