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What is an optional value in Swift?
...t; = Optional("Bob")
This calls Optional's first initializer, public init(_ some: Wrapped), which infers the optional's associated type from the type used within the parentheses.
The even longer way of creating and setting an optional:
var serialNumber:String? = Optional.none
serialNumber = Optiona...
mmap() vs. reading blocks
... for a long time, or if you know you can share it with other processes (MAP_SHARED isn't very interesting if there is no actual sharing). Read files normally if you access data sequentially or discard it after reading. And if either method makes your program less complex, do that. For many real w...
Benefits of prototypal inheritance over classical?
... you to copy the properties of an arbitrary number of objects. For example _.extend does just this.
Of course many programmers don't consider this to be true inheritance because instanceof and isPrototypeOf say otherwise. However this can be easily remedied by storing an array of prototypes on ever...
Reset/remove CSS styles for element only
...g last. This should be the new accepted answer.
– JS_Riddler
Sep 17 '15 at 20:17
2
Microsoft lis...
Google Maps Android API v2 - Interactive InfoWindow (like in original android google maps)
... switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN: startPress(); break;
// We need to delay releasing of the view a little so it shows the pressed state on the screen
case MotionEvent.ACTION_UP: handler.postDelayed(confirmClickRunnable, 150); b...
Why are const parameters not allowed in C#?
... “The callee is free to cast away the const …” uhhhhh… (°_°) This is a pretty shallow argument you're making here. The callee is also free to just start writing random memory locations with 0xDEADBEEF. But both would be very bad programming, and caught early and poignantly by an...
Refresh image with a new one at the same url
...
There is Date.now() for this
– vp_arth
Dec 24 '15 at 6:12
2
Why not Math.rand...
What does the `forall` keyword in Haskell/GHC do?
...ed FOL's 'forall' and 'exists' and stopped there.
– T_S_
Sep 20 '14 at 17:22
...
What's so bad about Template Haskell?
...ven know that TH code can be composed. Did you know that you can write forM_ [''Foo, ''Bar] generateLens? Q is just a monad, so you can use all of the usual functions on it. Some people don't know this, and because of that, they create multiple overloaded versions of essentially the same functions w...
Java naming convention for static final variables [duplicate]
...r abbreviations, all uppercase, with components
separated by underscore "_" characters. Constant names should be
descriptive and not unnecessarily abbreviated. Conventionally they may
be any appropriate part of speech. Examples of names for constants
include MIN_VALUE, MAX_VALUE, MIN_RADIX, ...