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How does the const constructor actually work?

...s with different canonicalized values (because signatures differ): var foo3 = const Foo(1, 2); // $Foo$int$1$int$2 var foo4 = const Foo(1, 3); // $Foo$int$1$int$3 var baz1 = const Baz(const Foo(1, 1), "hello"); // $Baz$Foo$int$1$int$1$String$hello var baz2 = const Baz(const Foo(1, 1), "hello"); //...
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Why is Scala's immutable Set not covariant in its type?

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How to test which port MySQL is running on and whether it can be connected to?

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Removing multiple keys from a dictionary safely

... answered Jan 24 '12 at 23:20 GlaslosGlaslos 2,57811 gold badge1616 silver badges2929 bronze badges ...
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INSERT … ON DUPLICATE KEY (do nothing)

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What are Transient and Volatile Modifiers?

...nce type, and zero or false for a primitive type. Note that the JLS (see 8.3.1.3) does not say what transient means, but defers to the Java Object Serialization Specification. Other serialization mechanisms may pay attention to a field's transient-ness. Or they may ignore it. (Note that the JLS ...
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Given an array of numbers, return array of products of all other numbers (no division)

... 1, a[0], a[0]*a[1], a[0]*a[1]*a[2], } { a[1]*a[2]*a[3], a[2]*a[3], a[3], 1, } Both of which can be done in O(n) by starting at the left and right edges respectively. Then multiplying the two arrays element by element gives the required result My...
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Fixed width buttons with Bootstrap

... 321 You can also use the .btn-block class on the button, so that it expands to the parent's width....
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How to change the background color of a UIButton while it's highlighted?

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Backwards migration with Django South

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