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Map vs Object in JavaScript
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A downside, presumably, is that a Map requires more memory (within the same order of magnitude, however) in order to maintain the insertion order.
– John Kurlak
Jun 5 '14 at 18:27
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Catch multiple exceptions at once?
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@JoãoBragança: While this answer in this example uses more lines, try to imagine if you are dealing with file IO for example, and all you want to do is catch those exceptions and do some log messaging, but only those you expect coming from your file IO methods. Then you often ha...
OOP vs Functional Programming vs Procedural [closed]
...f functions.
In a functional style, data and functions tend toward having more in common with each other (as in Lisp and Scheme) while offering more flexibility in terms of how functions are actually used. Algorithms tend also to be defined in terms of recursion and composition rather than loops an...
When to use MyISAM and InnoDB? [duplicate]
MyISAM is designed with the idea that your database is queried far more than its updated and as a result it performs very fast read operations. If your read to write(insert|update) ratio is less than 15% its better to use MyISAM.
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How do I increase the number of displayed lines of a Java stack trace dump?
... the full stack trace, so that I can see beyond the final line of "... 40 more" ?
3 Answers
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Are tuples more efficient than lists in Python?
... disassemble x = ListLike((1, 2, 3, 4, 5)); y = x[2]. The bytecode will be more like the tuple example above than the list example, but do you really believe that means performance will be similar?
– mzz
Jan 31 '10 at 15:21
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Explanation of BASE terminology
...earlier that year. I agree it is contrived a bit, but so is "ACID" -- much more than people realize, so we figured it was good enough.
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Benefits of using the conditional ?: (ternary) operator
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I always start out with a simple one and make it more complex over time until it is completely unreadable.
– Jouke van der Maas
Jul 22 '10 at 20:39
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How to detect if app is being built for device or simulator in Swift
...or)
// your simulator code
#else
// your real device code
#endif
For more clarification, you can check Swift proposal SE-0190
For older version -
Clearly, this is false on a device, but it returns true for the iOS Simulator, as specified in the documentation:
The arch(i386) build ...
When to use enumerateObjectsUsingBlock vs. for
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Ultimately, use whichever pattern you want to use and comes more naturally in the context.
While for(... in ...) is quite convenient and syntactically brief, enumerateObjectsUsingBlock: has a number of features that may or may not prove interesting:
enumerateObjectsUsingBlock: will...