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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
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python generator “send” function purpose?
...sent back to the doStuff() function. Thus the doStuff() can end up looking more or less like a normal procedural function, except it can be doing all sorts of computations & callbacks etc. The alternative before this functionality would be to do something like:
def doStuff():
returnDeferred...
In Functional Programming, what is a functor?
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In the ML family of languages, a functor is a module that takes one or more other modules as a parameter. It's considered an advanced feature, and most beginning programmers have difficulty with it.
As an example of implementation and practical use, you could define your favorite form of balan...
What does “%.*s” mean in printf?
...a string which is input from any stream or file based source. Which is far more often the use case I have encountered, than merely print prettines.
– Conrad B
Oct 24 '18 at 8:04
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Using tags to turn off caching in all browsers? [duplicate]
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More explanation would be nice. Why the repeated cache-control and expires? Why do you need all of these? What's so special about 1980? What's the difference between pragma:no-cache and cache-control:no-cache? More explanatio...
How can I add a hint text to WPF textbox?
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You can accomplish this much more easily with a VisualBrush and some triggers in a Style:
<TextBox>
<TextBox.Style>
<Style TargetType="TextBox" xmlns:sys="clr-namespace:System;assembly=mscorlib">
<Style.Resou...
Saving enum from select in Rails 4.1
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using titleize might be a better idea if you have two or more words
– Anwar
Aug 10 '15 at 4:46
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Regex: ?: notation (Question mark and colon notation) [duplicate]
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I am going to guess this is more efficient too, since it does not need to hold the groups in memory for backreference use...
– tmn
Apr 29 '15 at 2:56
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Avoiding recursion when reading/writing a port synchronously?
...d be as short as possible, and it should only handle the event. If is does more, then the handler is doing too much - especially if involves other shared resources. In many situations, the handler just saves the data which will be lost otherwise; and an asynchronous job will do the more complex thin...
Direct casting vs 'as' operator?
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