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Python's “in” set operator
... Ok so "is there an element x in s such that hash(b) == hash(x) and x == b"?
– Dejas
Jan 2 '12 at 21:25
13
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Git commit date
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The
show
command may be what you want. Try
git show -s --format=%ci <commit>
Other formats for the date string are available as well. Check the manual page for
details.
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javac : command not found
I have installed java in my CentOS release 5.5 machine using the command yum install java . But I am unable to compile a class using javac.
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How do I combine two data frames?
I'm using Pandas data frames. I have a initial data frame, say D . I extract two data frames from it like this:
6 Answers
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Why does pattern matching in Scala not work with variables?
...sense that the default behaviour is for lowercase patterns to be variables and not stable identifiers. Only when you see something beginning with upper case, or in back ticks, do you need to be aware that it comes from the surrounding scope.
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Convert seconds to HH-MM-SS with JavaScript?
...)
.toString('H:mm:ss');
--update
Nowadays date.js is outdated and not maintained, so use "Moment.js", which is much better as pointed out by T.J. Crowder.
--update 2
Please use @Frank's a one line solution:
new Date(SECONDS * 1000).toISOString().substr(11, 8)
It is by far the best ...
What is the benefit of zerofill in MySQL?
...ncated. Note that usage of ZEROFILL also implies UNSIGNED.
Using ZEROFILL and a display width has no effect on how the data is stored. It affects only how it is displayed.
Here is some example SQL that demonstrates the use of ZEROFILL:
CREATE TABLE yourtable (x INT(8) ZEROFILL NOT NULL, y INT(8) ...
Reloading module giving NameError: name 'reload' is not defined
...ave already imported in Python 3. I know that you only need to import once and executing the import command again won't do anything.
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Tracing XML request/responses with JAX-WS
...ublished with JAX-WS reference implementation (the one included in JDK 1.5 and better) ?
Being able to do that via code is what I need to do.
Just having it logged to a file by clever logging configurations would be nice but enough.
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How can I alter a primary key constraint using SQL syntax?
...rimary key constraint name, use query found here to look it up (or look up and drop all at once). http://stackoverflow.com/a/13948609/945875
– Justin
Dec 19 '13 at 20:06
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