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Cocoa: What's the difference between the frame and the bounds?
UIView and its subclasses all have the properties frame and bounds . What's the difference?
12 Answers
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optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
...emplates to set default values for local variables if a value wasn't explicitly defined in the :locals hash when rendering the partial --
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How to simplify a null-safe compareTo() implementation?
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edited Jun 23 '14 at 14:54
xehpuk
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Is a url query parameter valid if it has no value?
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The URI RFC doesn't mandate a format for the query string. Although it is recognized that the query string will often carry name-value pairs, it is not required to (e.g. it will often contain another URI).
3.4. Query
The query component contains non-hierarchical data that, along wit...
Thread-safe List property
...entation of List<T> as a property which can be used thread-safely without any doubt.
16 Answers
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Try-finally block prevents StackOverflowError
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It doesn't run forever. Each stack overflow causes the code to move to the finally block. The problem is that it will take a really, really long time. The order of time is O(2^N) where N is the maximum stack depth.
Imagine t...
Why does 2 == [2] in JavaScript?
I recently discovered that 2 == [2] in JavaScript. As it turns out, this quirk has a couple of interesting consequences:
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Does Haskell require a garbage collector?
... to detect that x2 can safely be deallocated when f returns (rather than waiting for the garbage collector to deallocate x2). Essentially, we are asking that the compiler perform escape analysis to convert allocations in to garbage-collected heap to allocations on the stack wherever possible.
This...
Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
...compilers) just used whatever overflow behaviour was easiest to implement with the integer representation it used. C implementations usually used the same representation used by the CPU - so the overflow behavior followed from the integer representation used by the CPU.
In practice, it is only the r...
Default implementation for Object.GetHashCode()
How does the default implementation for GetHashCode() work? And does it handle structures, classes, arrays, etc. efficiently and well enough?
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