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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
All the examples of strong parameters in Rails 4 docs use
2 Answers
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Creating PHP class instance with a string
...able functions & methods.
$func = 'my_function';
$func('param1'); // calls my_function('param1');
$method = 'doStuff';
$object = new MyClass();
$object->$method(); // calls the MyClass->doStuff() method.
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Apache Prefork vs Worker MPM
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ArvindArvind
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Disable Browser Link - which toolbar
...olbar, but that toolbar doesn't show up in my visual studio. I've enabled all the debug toolbars but still no browser link button.
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“An attempt was made to load a program with an incorrect format” even when the platforms are the sam
I'm calling functions from a 32-bit unmanaged DLL on a 64-bit system. What I get is:
20 Answers
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npm global path prefix
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answered Feb 11 '13 at 0:19
Pascal BellonclePascal Belloncle
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Why is reading lines from stdin much slower in C++ than Python?
...tl;dr: Because of different default settings in C++ requiring more system calls.
By default, cin is synchronized with stdio, which causes it to avoid any input buffering. If you add this to the top of your main, you should see much better performance:
std::ios_base::sync_with_stdio(false);
Normall...
Rails 4: before_filter vs. before_action
...ller::Base, before_action is just a new syntax for before_filter.
However all before_filters syntax are deprecated in Rails 5.0 and will be removed in Rails 5.1
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Cast a Double Variable to Decimal
...:56
orad
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answered May 15 '11 at 7:48
GuffaGuffa
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Objective-C: Where to remove observer for NSNotification?
...his is obviously not a satisfying answer.
I'd recommend, that you add a call [notificationCenter removeObserver: self] in method dealloc of those classes, which you intend to use as observers, as it is the last chance to unregister an observer cleanly. This will, however, only protect you against ...