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Non greedy (reluctant) regex matching in sed?
...-greedy quantifier; you need a later regex. Fortunately, Perl regex for this context is pretty easy to get:
perl -pe 's|(http://.*?/).*|\1|'
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Should all jquery events be bound to $(document)?
When I first learned jQuery, I normally attached events like this:
4 Answers
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Do I need dependency injection in NodeJS, or how to deal with …?
...r or property injection. Although you still can.
The great thing about JS is that you can modify just about anything to achieve what you want. This comes in handy when it comes to testing.
Behold my very lame contrived example.
MyClass.js:
var fs = require('fs');
MyClass.prototype.errorFileExis...
delete a.x vs a.x = undefined
Is there any substantial difference in doing either of these?
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Namespace + functions versus static methods on a class
...namespaces.
In Object Oriented code
Scott Meyers wrote a whole Item for his Effective C++ book on this topic, "Prefer non-member non-friend functions to member functions". I found an online reference to this principle in an article from Herb Sutter: http://www.gotw.ca/gotw/084.htm
The important t...
Pandas selecting by label sometimes return Series, sometimes returns DataFrame
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Granted that the behavior is inconsistent, but I think it's easy to imagine cases where this is convenient. Anyway, to get a DataFrame every time, just pass a list to loc. There are other ways, but in my opinion this is the cleanest.
In [2]: type(df....
How to prevent buttons from submitting forms
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You're using an HTML5 button element. Remember the reason is this button has a default behavior of submit, as stated in the W3 specification as seen here:
W3C HTML5 Button
So you need to specify its type explicitly:
<button type="button">Button</button>
in order to over...
How do I implement basic “Long Polling”?
I can find lots of information on how Long Polling works (For example, this , and this ), but no simple examples of how to implement this in code.
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What are the applications of binary trees?
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To squabble about the performance of binary-trees is meaningless - they are not a data structure, but a family of data structures, all with different performance characteristics. While it is true that unbalanced binary trees perform much worse than self-balancing binary tre...
ViewPager and fragments — what's the right way to store fragment's state?
...on of UI logic into some modules. But along with ViewPager its lifecycle is still misty to me. So Guru thoughts are badly needed!
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