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Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
...+! v}).v.
– pimvdb
Aug 2 '11 at 11:32
17
@Brian: not with that magic + sign! ¯\_(ツ)_/¯
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What should I use Android AccountManager for?
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GabGab
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variable === undefined vs. typeof variable === “undefined”
The jQuery Core Style Guidelines suggest two different ways to check whether a variable is defined.
8 Answers
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Remove all special characters, punctuation and spaces from string
... without regex:
>>> string = "Special $#! characters spaces 888323"
>>> ''.join(e for e in string if e.isalnum())
'Specialcharactersspaces888323'
You can use str.isalnum:
S.isalnum() -> bool
Return True if all characters in S are alphanumeric
and there is at least one ch...
How can I lookup a Java enum from its String value?
I would like to lookup an enum from its string value (or possibly any other value). I've tried the following code but it doesn't allow static in initialisers. Is there a simple way?
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Automatically import modules when entering the python or ipython interpreter
...roduction scripts.
For Ipython, see this tutorial on how to make a ipython_config file
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Change an HTML5 input's placeholder color with CSS
Chrome supports the placeholder attribute on input[type=text] elements (others probably do too).
37 Answers
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How to empty a list?
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32
it turns out that with python 2.5.2, del l[:] is slightly slower than l[:] = [] by 1.1 usec.
$...
How to install Java SDK on CentOS?
...is, the lastest available version may be different.
java-1.7.0-openjdk.x86_64
The above package alone will only install JRE. To also install javac and JDK, the following command will do the trick:
$ yum install java-1.7.0-openjdk*
These packages will be installing (as well as their dependencie...
In HTML5, should the main navigation be inside or outside the element?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...