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What is the point of function pointers?
...ss functor {
public:
functor(const std::string& prompt) : prompt_(prompt) {}
void operator()(int i) {std::cout << prompt_ << i << '\n';}
private:
std::string prompt_;
};
functor f("the answer is: ");
f(42);
Another advantage is that it is sometimes easier ...
How to detect if URL has changed after hash in JavaScript
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edited Oct 21 '19 at 14:39
Constantin Groß
8,50944 gold badges1515 silver badges3838 bronze badges
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Imitate Facebook hide/show expanding/contracting Navigation Bar
...tionController.navigationBar.frame;
CGFloat size = frame.size.height - 21;
CGFloat framePercentageHidden = ((20 - frame.origin.y) / (frame.size.height - 1));
CGFloat scrollOffset = scrollView.contentOffset.y;
CGFloat scrollDiff = scrollOffset - self.previousScrollViewYOffset;
CGF...
Get JSON object from URL
...ring from the url then access the json object?
– user2199343
Mar 25 '13 at 14:35
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Java: Integer equals vs. ==
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Naman
68.4k2121 gold badges156156 silver badges264264 bronze badges
answered Sep 3 '10 at 17:08
AdamAdam
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Object.watch() for all browsers?
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answered Jun 22 '09 at 21:16
Crescent FreshCrescent Fresh
105k2323 gold badges149149 silver badges138138 bronze badges
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Escape a string for a sed replace pattern
...es, forward slash for end of statement and & for replace all):
ESCAPED_REPLACE=$(printf '%s\n' "$REPLACE" | sed -e 's/[\/&]/\\&/g')
# Now you can use ESCAPED_REPLACE in the original sed statement
sed "s/KEYWORD/$ESCAPED_REPLACE/g"
If you ever need to escape the KEYWORD string, the fol...
RESTful Authentication via Spring
... ?
– Yonatan Maman
Jan 14 '14 at 14:21
3
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PHP Multidimensional Array Searching (Find key by specific value)
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mukama
89122 gold badges1212 silver badges2727 bronze badges
answered Nov 12 '11 at 3:05
Aurelio De RosaAurelio De Rosa
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How to detect if a variable is an array
... work fine in IE8+, but not in IE6,7
– user123444555621
Oct 27 '10 at 9:21
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