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Best way to find if an item is in a JavaScript array? [duplicate]
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edited Mar 10 '19 at 21:14
awendt
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a...
Is there a way to pass optional parameters to a function?
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def my_func(mandatory_arg, optional_arg=100):
print(mandatory_arg, optional_arg)
http://docs.python.org/2/tutorial/controlflow.html#default-argument-values
I find this more readable than using **kwargs.
To determine if an argument was passed at all, I use a...
Why is === faster than == in PHP?
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answered Mar 8 '10 at 13:16
meder omuralievmeder omuraliev
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How to check if command line tools is installed
I have a macbook pro with OS X 10.8.2.
XCode is installed. I know this as it appears in the Applications directory.
There are also the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is ...
How to initialise memory with new operator in C++?
...ut it actually has special syntax for value-initializing an array:
new int[10]();
Note that you must use the empty parentheses — you cannot, for example, use (0) or anything else (which is why this is only useful for value initialization).
This is explicitly permitted by ISO C++03 5.3.4[expr.new]...
Preferred way of loading resources in Java
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answered Oct 5 '10 at 8:48
Michael WilesMichael Wiles
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Modifying a query string without reloading the page
...your browser
– Zhenya
May 24 '17 at 10:49
4
in modern browsers you can just do: if (window.histor...
Converting datetime.date to UTC timestamp in Python
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How to kill a child process after a given timeout in Bash?
...t already installed otherwise use sudo apt-get install coreutils)
timeout 10 ping www.goooooogle.com
If you don't want to download something, do what timeout does internally:
( cmdpid=$BASHPID; (sleep 10; kill $cmdpid) & exec ping www.goooooogle.com )
In case that you want to do a timeout ...
Boolean operators && and ||
...he reason for preferring one. A word of warning though, make sure you are 100% sure they can only be length one. You can get really goofy bugs otherwise.
– Aaron left Stack Overflow
Jul 2 '11 at 19:28
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