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How to create GUID / UUID?
...vaScript. I'm not sure what routines are available on all browsers, how "random" and seeded the built-in random number generator is, etc.
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How to search for occurrences of more than one space between words in a line
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[ ]{2,}
SPACE (2 or more)
You could also check that before and after those spaces words follow. (not other whitespace like tabs or new lines)
\w[ ]{2,}\w
the same, but you can also pick (capture) only the spaces for tasks like replacement
\w([ ]{2,})\w
or see that before and af...
How do I get a substring of a string in Python?
...'d!'
>>> x[2:-2]
'llo Worl'
Python calls this concept "slicing" and it works on more than just strings. Take a look here for a comprehensive introduction.
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reformat in vim for a nice column layout
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If you're on some kind of UNIX (Linux, etc), you can cheat and filter it through the column(1) command.
:%!column -t
The above will parse on delimiters inside string literals which is wrong, so you will likely need pre-processing steps and specifying the delimiter for this file fo...
Explaining Python's '__enter__' and '__exit__'
...nt.
The idea is that it makes it easy to build code which needs some 'cleandown' code executed (think of it as a try-finally block). Some more explanation here.
A useful example could be a database connection object (which then automagically closes the connection once the corresponding 'with'-sta...
Set cookie and get cookie with JavaScript [duplicate]
... which CSS file I choose in my HTML. I have a form with a list of options, and different CSS files as values. When I choose a file, it should be saved to a cookie for about a week. The next time you open your HTML file, it should be the previous file you've chosen.
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Use tab to indent in textarea
... }
});
jQuery: How to capture the TAB keypress within a Textbox
How to handle <tab> in textarea?
http://jsfiddle.net/jz6J5/
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How to format strings in Java
...g.format, also take a look java.text.MessageFormat. The format less terse and a bit closer to the C# example you've provided and you can use it for parsing as well.
For example:
int someNumber = 42;
String someString = "foobar";
Object[] args = {new Long(someNumber), someString};
MessageForma...
How to check if a string in Python is in ASCII?
...answered Oct 13 '08 at 0:30
Alexander KojevnikovAlexander Kojevnikov
16.8k55 gold badges4545 silver badges4545 bronze badges
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how do I check in bash whether a file was created more than x time ago?
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you can drop 'test' and the backticks. This is analogous to 'if (test == true)' vs 'if (test)'
– guns
Sep 9 '09 at 19:51
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