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Usage of protocols as array types and function parameters in swift
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You've hit a variant of a problem with protocols in Swift for which no good solution exists yet.
See also Extending Array to check if it is sorted in Swift?, it contains suggestions on how to work around it that may be suitable for ...
Favorite Django Tips & Features?
...tion series 'Hidden features of ...', I am curious to hear about your favorite Django tips or lesser known but useful features you know of.
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Why should I use Deque over Stack?
I need a Stack data structure for my use case. I should be able to push items into the data structure and I only want to retrieve the last item from the Stack. The JavaDoc for Stack says :
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Get Slightly Lighter and Darker Color from UIColor
...mp;r green:&g blue:&b alpha:&a])
return [UIColor colorWithRed:MIN(r + 0.2, 1.0)
green:MIN(g + 0.2, 1.0)
blue:MIN(b + 0.2, 1.0)
alpha:a];
return nil;
}
- (UIColor *)darkerColorForCol...
public static const in TypeScript
... defined as public static are simply attached to the exported function (as its properties); therefore they should be accessible as long as you properly access the function itself.
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When should we use intern method of String on String literals
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Java automatically interns String literals. This means that in many cases, the == operator appears to work for Strings in the same way that it does for ints or other primitive values.
Since interning is automatic for String literals, the intern() method is to...
“Auto Layout still required after executing -layoutSubviews” with UITableViewCell subclass
Using XCode 4.5 and iOS 6, I'm developing an app with a simple table view with custom cells. I've done this a hundred times in iOS 5 and below, but for some reason the new autoLayout system is giving me a lot of trouble.
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When should you use 'friend' in C++?
...d was curious about the friend declaration. I personally have never used it, however I am interested in exploring the language.
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Hash function that produces short hashes?
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You can use any commonly available hash algorithm (eg. SHA-1), which will give you a slightly longer result than what you need. Simply truncate the result to the desired length, which may be good enough.
For example, in Python:
>>> import hashlib
>>>...
How to strip all whitespace from string
... to be turned into stripmyspaces , but I cannot seem to accomplish that with strip() :
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