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Is it possible to make the -init method private in Objective-C?
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Objective-C, like Smalltalk, has no concept of "private" versus "public" methods. Any message can be sent to any object at any time.
What you can do is throw an NSInternalInconsistencyException if your -init method is invoked:
- (id)init {
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Using python map and other functional tools
...earn. A fundamental rule in functional programming is that every time you call a function with the same arguments, you ALWAYS get the same output. This avoids a vipers nest of bugs introduced by having global state. As maptest depends on an external definition of bars, this principle is broken.
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Resolving ambiguous overload on function pointer and std::function for a lambda using +
In the following code, the first call to foo is ambiguous, and therefore fails to compile.
1 Answer
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Usage of protocols as array types and function parameters in swift
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or let foo = SomeClass<MyMemberClass>()
– DarkDust
Jul 22 '14 at 14:18
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Can I escape html special chars in javascript?
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I think regular expressions in replace() calls are unnecessary. Plain old single-character strings would do just as well.
– jamix
May 30 '14 at 14:47
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...有语句执行，就不要写这个else。
还要注意，sh里的if [ $foo -eq 0 ]，这个方括号跟Java/PHP里if后面的圆括号大不相同，它是一个可执行程序（和cd, ls, grep一样），相不到吧？在CentOS上，它在/usr/bin目录下：
ll /usr/bin/[
-rwxr-xr-x. 1 ro...
How can I capitalize the first letter of each word in a string?
...ith an 'that had words right after it and then closed'". With this example all the worlds except for that are capitalized as expected. The results being "There Once Was A String With An 'that Had Words Right After It And Then Closed'"
– devonbleibtrey
Mar 25 '1...
querySelector, wildcard element match?
...to do a wildcard element name match using querySelector or querySelectorAll ? I see support for wildcards in attribute queries but not for the elements themselves.
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How to find where a method is defined at runtime?
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This is really late, but here's how you can find where a method is defined:
http://gist.github.com/76951
# How to find out where a method comes from.
# Learned this from Dave Thomas while teaching Advanced Ruby Studio
# Makes the cas...
Ways to implement data versioning in MongoDB
... approach would be to store diffs. Because the display of these diffs is really a special action, I would put the diffs in a different "history" collection.
I would use the different collection to save memory space. You generally don't want a full history for a simple query. So by keeping the histo...