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Is there a CSS parent selector?
...everybody has come to know and love from jQuery. The latest ED has removed all references to the subject indicator, and replaced it with the :has() pseudo. I don't know the exact reasons, but the CSSWG held a poll some time ago and the results must have influenced this decision. It's most likely for...
Upgrading Node.js to latest version
So, I have Node.js installed and now when I tried to install Mongoosejs I got an error telling me that I don't have the needed version of Node.js (I have v0.4.11 and v0.4.12 is needed).
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How can I add a help method to a shell script?
... into a shell script? I would like to display a help message when a user calls myscript.sh -h .
6 Answers
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Load different colorscheme when using vimdiff
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If you're calling vimdiff from the command-line, put the following in your .vimrc:
if &diff
colorscheme some_other_scheme
endif
If you're using vimdiff from within vim, you'd either have to override the commands you use to st...
How to install python3 version of package via pip on Ubuntu?
I have both python2.7 and python3.2 installed in Ubuntu 12.04 .
The symbolic link python links to python2.7 .
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Git: Permission denied (publickey) fatal - Could not read from remote repository. while cloning Git
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This is the most appropriate fallback plan if ssh permissions don't get resolved or you want to skip that part.
– Wahib Ul Haq
Apr 30 '16 at 11:12
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String formatting named parameters?
I know it's a really simple question, but I have no idea how to google it.
6 Answers
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Find the most frequent number in a numpy vector
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If your list contains all non-negative ints, you should take a look at numpy.bincounts:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.bincount.html
and then probably use np.argmax:
a = np.array([1,2,3,1,2,1,1,1,3,2,2,1])
counts = np.bi...
Remove an entire column from a data.frame in R
...u could do
Data <- subset( Data, select = -c(d, b ) )
You can remove all columns between d and b with:
Data <- subset( Data, select = -c( d : b )
As I said above, this syntax works only when the column names are known. It won't work when say the column names are determined programmatical...
Javascript Equivalent to C# LINQ Select
... object literal based solutions when filtering 1-2 properties, and pass a callback function for more complex filtering.
I'll end this with 2 general tips when adding methods to native object prototypes:
Check for occurrence of existing methods before overwriting e.g.:
if(!Array.prototype.where) ...