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What are the differences between type() and isinstance()?
What are the differences between these two code fragments?
7 Answers
7
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Can I invoke an instance method on a Ruby module without including it?
I have a module which declares a number of instance methods
10 Answers
10
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Which SQL query is faster? Filter on Join criteria or Where clause?
... WHERE clause. I have always felt that it is faster on the join criteria because it reduces the result set at the soonest possible moment, but I don't know for sure.
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How can I do an asc and desc sort using underscore.js?
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You can use .sortBy, it will always return an ascending list:
_.sortBy([2, 3, 1], function(num) {
return num;
}); // [1, 2, 3]
But you can use the .reverse method to get it descending:
var array = _.sortBy([2, 3, 1], function(num) {
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php execute a background process
I need to execute a directory copy upon a user action, but the directories are quite large, so I would like to be able to perform such an action without the user being aware of the time it takes for the copy to complete.
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python multithreading wait till all threads finished
This may have been asked in a similar context but I was unable to find an answer after about 20 minutes of searching, so I will ask.
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Overlaying histograms with ggplot2 in R
...m trying to plot 3 histograms onto the same graph.
Everything worked fine, but my problem is that you don't see where 2 histograms overlap - they look rather cut off.
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Where to put the doxygen comment blocks for an internal library - in H or in CPP files? [closed]
The common sense tells that the Doxygen comment blocks have to be put in the header files where the classes, structs, enums, functions, declarations are. I agree that this is a sound argument for a libraries that are mean to be distributed without its source (only headers and libs with object code)....
What exactly are late static bindings in PHP?
What exactly are late static bindings in PHP?
8 Answers
8
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What do (lambda) function closures capture?
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Your second question has been answered, but as for your first:
what does the closure capture exactly?
Scoping in Python is dynamic and lexical. A closure will always remember the name and scope of the variable, not the object it's pointing to. ...