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Convert a list of data frames into one data frame
...system elapsed
0.30 0.00 0.29
> identical(df, df2)
[1] TRUE
My guess is that using do.call("rbind", ...) is going to be the fastest approach that you will find unless you can do something like (a) use a matrices instead of a data.frames and (b) preallocate the final matrix and assign ...
Create a CSS rule / class with jQuery at runtime
...imply
$("<style>")
.prop("type", "text/css")
.html("\
#my-window {\
position: fixed;\
z-index: 102;\
display:none;\
top:50%;\
left:50%;\
}")
.appendTo("head");
Noticed the back slashes? They are used to join strings that are on ne...
GitHub: Permission denied (publickey). fatal: The remote end hung up unexpectedly
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I had to add my public key to github. https://help.github.com/articles/generating-ssh-keys
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“date(): It is not safe to rely on the system's timezone settings…”
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This solve my problem! Just an info for the non-experts like me, in order to find the php.ini used by apache, just execute the following command php -i | grep php.ini.
– Joël Salamin
Sep 24 '14 at...
Build and Version Numbering for Java Projects (ant, cvs, hudson)
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For several of my projects I capture the subversion revision number, time, user who ran the build, and some system information, stuff them into a .properties file that gets included in the application jar, and read that jar at runtime.
The...
Sort a list by multiple attributes?
...apply revrse=True only to x[1] is that possible ?
– Amyth
Nov 24 '14 at 11:45
30
@moose, @Amyth, ...
Open file in a relative location in Python
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__file__ is a relative path (at least on my setup, for some reason), and you need to call os.path.abspath(__file__) first. osx/homebrew 2.7
– Cory Mawhorter
Jul 17 '13 at 21:35
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Check if database exists in PostgreSQL using shell
...+-----------+----------+------------+------------+-----------------------
my_db | my_user | UTF8 | en_US.UTF8 | en_US.UTF8 |
postgres | postgres | LATIN1 | en_US | en_US |
template0 | postgres | LATIN1 | en_US | en_US | =c/postgres +
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Express.js req.body undefined
I have this as configuration of my Express server
35 Answers
35
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Undo a git stash
... state before I stashed? How could I do this? I've closed the terminal and my laptop is shut down. I've done some researched and it seems there's no way to do this.
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