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jQuery, simple polling example
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setinterval would make an ajax call every 5 seconds no matter what. the way have written it (which i believe is good practice) will wait for the results THEN make another ajax request 5 seconds later. there are times i would use setinterval, but this is no...
Call asynchronous method in constructor?
Summary : I would like to call an asynchronous method in a constructor. Is this possible?
13 Answers
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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
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@Jochem: You're still trying to call a method on a null object, so I'm guessing no. Think of it as null.ToString() vs ToString(null).
– Svish
May 30 '12 at 14:31
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When is JavaScript synchronous?
...ript is only asynchronous in the sense that it can make, for example, Ajax calls. The Ajax call will stop executing and other code will be able to execute until the call returns (successfully or otherwise), at which point the callback will run synchronously. No other code will be running at this poi...
What is the meaning of single and double underscore before an object name?
...mc = MyClass()
>>> print mc.__superprivate
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: myClass instance has no attribute '__superprivate'
>>> print mc._semiprivate
, world!
>>> print mc.__dict__
{'_MyClass__superpriv...
Adding a Method to an Existing Object Instance
... that instance will be passed as the first argument whenever the method is called.
Callables that are attributes of a class (as opposed to an instance) are still unbound, though, so you can modify the class definition whenever you want:
>>> def fooFighters( self ):
... print "fooFighter...
How to prevent Node.js from exiting while waiting for a callback?
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Callback is Not Queued
Node runs until all event queues are empty. A callback is added to an event queue when a call such as
emmiter1.on('this_event',callback).
has executed. This call is part of the code written by t...
Is there a performance impact when calling ToList()?
... works in case you're interested :)
A List<T> also uses a construct called a dynamic array which needs to be resized on demand, this resize event copies the contents of an old array to the new array. So it starts off small and increases in size if required.
This is the difference between the...
How does Apple know you are using private API?
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I'm curious about the workaround of calling private methods. I think the compiler will generate call to objc_msgSend(foo, @selector(privateMethod)) for [foo privateMethod], so if Apple can detect the direct call of privateMethod they can also detect the indirec...
React.js: Wrapping one component into another
...ossible to pass render functions to a component, this pattern is generally called render prop, and the children prop is often used to provide that callback.
This pattern is not really meant for layout. The wrapper component is generally used to hold and manage some state and inject it in its render...