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Difference between single and double square brackets in Bash
... a weird name.
] is just an argument of [ that prevents further arguments from being used.
Ubuntu 16.04 actually has an executable for it at /usr/bin/[ provided by coreutils, but the bash built-in version takes precedence.
Nothing is altered in the way that Bash parses the command.
In particular...
How to get the size of a string in Python?
...ed to store str object, you can use sys.getsizeof() function
>>> from sys import getsizeof
>>> print(getsizeof('please anwser my question'))
50
Python 2:
It gets complicated for Python 2.
A. The len() function in Python 2 returns count of bytes allocated to store encoded char...
Proper way to initialize a C# dictionary with values?
... }
}
Can you try to reproduce it in a simple Console application and go from there? It seems likely that you're targeting .NET 2.0 (which doesn't support it) or client profile framework, rather than a version of .NET that supports initialization syntax.
...
Best practice for embedding arbitrary JSON in the DOM?
...
Thank you. The quote from the spec has convinced me.
– Ben Lee
Feb 16 '12 at 23:25
17
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How to find if a given key exists in a C++ std::map
...urn 1 (if the element is found) or zero (otherwise)."
To retrieve a value from the map via a key that you know to exist, use map::at:
value = m.at(key)
Unlike map::operator[], map::at will not create a new key in the map if the specified key does not exist.
...
How to run function in AngularJS controller on document ready?
...arios I tested. In a sample page with 4 components all of which build HTML from a template, the order of events was
$document ready
$onInit
$postLink
(and these 3 were repeated 3 more times in the same order for the other 3 components)
$viewContentLoaded (repeated 3 more times)
$timeout execution (...
What does the plus sign do in '+new Date'
...to get the numeric value of that object using valueOf() like we get string from toString()
new Date().valueOf() == (+new Date) // true
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Scroll Element into View with Selenium
... next bit of the page after scrolling, among other possibilities. Speaking from experience, Selenium has frequently broken my company's site because the automated action occurred faster than the Javascript could complete, and thus passed an incomplete data model. Some places may consider it a bug, b...
Can I use the range operator with if statement in Swift?
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@Sky: From the generated assembly code one can see that a library function func ~= (Range<A>, A) -> Bool is called. I would assume that this function works with O(1).
– Martin R
Jul 2...
How to get object size in memory? [duplicate]
...the application you may get the information you are interested in.
Apart from that you can use a profiler to get the information or you could use the profiling api to get the information in code. But that won't be easy to use I think.
See Find out how much memory is being used by an object in C#?...