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Failed to load c++ bson extension
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I was unable to solve this
until now. First of all you have to have system packages mentioned by Pradeep Mahdevu. Those are:
xcode-select --install (on a mac)
or
sudo apt-get install gcc make build-essential (on ubuntu)
Then I've installed node-gyp
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Is there a HTML opposite to ?
...ag in HTML that will only display its content if JavaScript is enabled? I know <noscript> works the opposite way around, displaying its HTML content when JavaScript is turned off. But I would like to only display a form on a site if JavaScript is available, telling them why they can't use th...
Regular expression to allow spaces between words
...tl;dr
Just add a space in your character class.
^[a-zA-Z0-9_ ]*$
Now, if you want to be strict...
The above isn't exactly correct. Due to the fact that * means zero or more, it would match all of the following cases that one would not usually mean to match:
An empty string, "".
A string...
How to count the number of occurrences of an element in a List
...ld always try composition rather than inheritance. Your implementation is now stuck to ArrayList when there may be times you want a LinkedList or other. Your example should have taken another LIst in its constructor/factory and returned a wrapper.
– mP.
Feb 5...
:active pseudo-class doesn't work in mobile safari
...-color: rgba(0,0,0,0);">
Testing Touch on iOS
</button>
Now when the button is tapped and held on iOS, the button changes to the specified color without the surrounding transparent gray color appearing.
In other words, setting an ontouchstart event (even if it's empty) is explic...
“unrecognized selector sent to instance” error in Objective-C
...auses the numberButtonClicked: method to be sent to another object that is now occupying the memory that the view controller was previously occupying...
Make sure you're properly retaining/releasing your view controller.
sh...
Obtaining a powerset of a set in Java
...tains() would be O(n), etc.
Do you really need this?
EDIT:
This code is now available in Guava, exposed through the method Sets.powerSet(set).
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ViewController respondsToSelector: message sent to deallocated instance (CRASH)
...o show object that was called after it was deallocated.
You should see now every call that has changed retain count of this object. This could be because sending directly retain/release messages as well as draining autorelease pools or inserting into NSArrays.
RefCt column shows retainCount aft...
CSS transition shorthand with multiple properties?
...ay property.
Edit: previously listed here were the compatibilities and known issues regarding transition. Removed for readability.
Bottom-line: just use it. The nature of this property is non-breaking for all applications and compatibility is now well above 94% globally.
If you still want to be...
Is there a decorator to simply cache function return values?
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the backport can now be found here: pypi.python.org/pypi/backports.functools_lru_cache
– Frederick Nord
Jul 21 '15 at 7:55
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