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What does the message “rewrite … (90%)” after a Git commit mean? [duplicate]
...ta for files, but I just don't know how much of a rewrite the % represents and it doesn't seem to be in the help page for git help commit .
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Python-equivalent of short-form “if” in C++ [duplicate]
...ython 2.5+), a 1-to-1 equivalent of your version might be:
a = (b == True and "123" or "456" )
... which in python should be shortened to:
a = b is True and "123" or "456"
... or if you simply want to test the truthfulness of b's value in general...
a = b and "123" or "456"
? : can literall...
How should I organize Python source code? [closed]
I'm getting started with Python (it's high time I give it a shot), and I'm looking for some best practices.
2 Answers
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Why does javascript replace only first instance when using replace? [duplicate]
...chobo2 it didn't take away two slashes. There were only two to begin with, and it removed the first one.
– Doug Neiner
Dec 27 '09 at 21:45
6
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Oracle find a constraint
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select * from all_constraints
where owner = '<NAME>'
and constraint_name = 'SYS_C00381400'
/
Like all data dictionary views, this a USER_CONSTRAINTS view if you just want to check your current schema and a DBA_CONSTRAINTS view for administration users.
The construction of th...
php Replacing multiple spaces with a single space [duplicate]
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Use preg_replace() and instead of [ \t\n\r] use \s:
$output = preg_replace('!\s+!', ' ', $input);
From Regular Expression Basic Syntax Reference:
\d, \w and \s
Shorthand character classes matching
digits, word characters (letters,...
Eclipse keyboard shortcut to indent source code to the left?
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In my copy, Shift + Tab does this, as long as I have a code selection, and am in a code window.
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Locate Git installation folder on Mac OS X
...git version in /usr/bin. To ensure you can easily upgrade from the website and use the latest git version, edit either your profile information to place /usr/local/git/bin before /usr/bin in the $PATH or edit /etc/paths and insert /usr/local/git/bin as the first entry (see this answer).
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Transition of background-color
...ar as I know, transitions currently work in Safari, Chrome, Firefox, Opera and Internet Explorer 10+.
This should produce a fade effect for you in these browsers:
a {
background-color: #FF0;
}
a:hover {
background-color: #AD310B;
-webkit-transition: background-color 1000ms l...
How do I combine two data-frames based on two columns? [duplicate]
I know I can use the plyr and its friends to combine dataframes, and merge as well, but so far I don't know how to merge two dataframes with multiple columns based on 2 columns?
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