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How different is Objective-C from C++? [closed]
...y let you send a message to nil, unlike C++ which will crash if you try to call a member function of nullptr
Objective-C allows for dynamic dispatch, allowing the class responding to a message to be determined at runtime, unlike C++ where the object a method is invoked upon must be known at compile ...
How to check if a value exists in an array in Ruby
...
@HenleyChiu I which it was called [ 'Dog', 'Bird', 'Cat' ].has? 'Dog'
– user1115652
May 21 '14 at 23:01
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What is an uninterruptible process?
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An uninterruptible process is a process which happens to be in a system call (kernel function) that cannot be interrupted by a signal.
To understand what that means, you need to understand the concept of an interruptible system call. The classic example is read(). This is a system call that can ...
Is there a JavaScript / jQuery DOM change listener?
...uld be observed by the observer
// and what types of mutations trigger the callback
observer.observe(document, {
subtree: true,
attributes: true
//...
});
This example listens for DOM changes on document and its entire subtree, and it will fire on changes to element attributes as well as stru...
AngularJS : How do I switch views from a controller function?
...d to expand for any future visitors who may want to do it a bit more dynamically -
In the view -
<div ng-repeat="person in persons">
<div ng-click="changeView(person)">
Go to edit
<div>
<div>
In the controller -
$scope.changeView = function(person){
...
Handling click events on a drawable within an EditText
... any space on the TextView), the method onTouchEvent(MotionEvent event) is called. So, I can implement OnClickListener for a usual TextView without any additional classes such as CustomEditText
– Maksim Dmitriev
Nov 30 '12 at 7:31
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jQuery UI - Close Dialog When Clicked Outside
... $('.ui-dialog-content').dialog('close');
}
}
});
This calls dialog('close') on the generic ui-dialog-content class, and so will close all dialogs if the click didn't originate in one. It will work with modal dialogs too, since the overlay is not part of the .ui-dialog box.
The ...
How to use jQuery to select a dropdown option?
...the onchange event is never triggered when the value is changed programmatically. You could add a .trigger('change') at the end to also fire the event (although it will fire regardless of the value having actually changed)
– Gabriele Petrioli
Jun 14 '16 at 18:4...
How is Racket different from Scheme?
... and not R6RS and not a strict superset of either. I don't think it can be called 'Scheme' because it's not backwards compatible with any Scheme standard.
Most implementations offer extensions, but are otherwise backwards compatible, of course, the compiler that comes with Racket can also run in R5...
MySQL “WITH” clause
...5.x does not support queries using the WITH syntax defined in SQL-99, also called Common Table Expressions.
This has been a feature request for MySQL since January 2006: http://bugs.mysql.com/bug.php?id=16244
Other RDBMS products that support common table expressions:
Oracle 9i release 2 and later:...