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How to use XPath contains() here?
...that this:
//ul[@class='featureList' and contains(li, 'Type')]
would actually select a node!
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How to remove a field from params[:something]
... = params.except[the one I wish to remove]
This is a safer way to 'grab' all the params you need into a copy WITHOUT destroying the original passed in params (which is NOT a good thing to do as it will make debugging and maintenance of your code very hard over time).
Or you could just pass direc...
How to pass argument to Makefile from command line?
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$(shell echo $(MAKECMDGOALS) | sed 's!^.* $@ !!') to omit all targets before and just consider the following as arguments: make target1 target2 action value1 value2
– Evgeniy Generalov
May 14 '14 at 13:51
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Why does Popen.communicate() return b'hi\n' instead of 'hi'?
...code('ascii'))
hi
Of course, this specific example only works if you actually are receiving ASCII from the subprocess. If it's not ASCII, you'll get an exception:
>>> print(b'\xff'.decode('ascii'))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
Unic...
Can anyone explain python's relative imports?
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Thanks, but this honestly seems really silly. For such a beautiful language, I can't believe the designers would create such a restriction. Isn't there any other way?
– carl
Dec 16 '09 at 23:48
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Passing arguments forward to another javascript function
...manipulate that before passing it along, for example: var copy = [].slice.call(arguments); <remove what you want> myFunc.apply(this, copy);
– Nick Craver♦
Feb 17 '12 at 11:18
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how to permit an array with strong parameters
...ermit expects each argument to be a Hash or a Symbol. Ruby magic will turn all key value pairs s at the end of a method call into one hash, but Ruby won't know what to do if you mix symbols with key/value pairs in your method call.
– sameers
Nov 20 '13 at 0:05
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How to properly check if std::function is empty in C++11?
...'re not checking for an empty lambda, but whether the std::function has a callable target stored in it. The check is well-defined and works because of std::function::operator bool which allows for implicit conversion to bool in contexts where boolean values are required (such as the conditional expr...
Is #pragma once part of the C++11 standard?
Traditionally, the standard and portable way to avoid multiple header inclusions in C++ was/is to use the #ifndef - #define - #endif pre-compiler directives scheme also called macro-guard scheme (see code snippet below).
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How do I create a random alpha-numeric string in C++?
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C++11 allows you to separate the generator from the engine, but what is best depends on what the needs of your application are. This is why my first snippet uses rand and the second does not.
– Carl
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