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CSS last-child selector: select last-element of specific class, not last child inside of parent?
I want to select #com19 ?
6 Answers
6
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Repeat each row of data.frame the number of times specified in a column
...es
library(dplyr)
df %>%
slice(rep(seq_len(n()), freq)) %>%
select(-freq)
# var1 var2
#1 a d
#2 b e
#3 b e
#4 c f
#5 c f
#6 c f
seq_len(n()) part can be replaced with any of the following.
df %>% slice(rep(1:nrow(df), freq)) %>% select(-...
'Java' is not recognized as an internal or external command
...
For Windows 7:
Right click on My Computer
Select Properties
Select Advanced System Settings
Select Advanced tab
Select Environment Variables
Select Path under System Variables
Click on Edit button
In Variable value editor paste this at the start of the line
C:\Progr...
Replace a newline in TSQL
...e any of CR, LF or CR+LF. To get them all, you need something like this:
SELECT REPLACE(REPLACE(@str, CHAR(13), ''), CHAR(10), '')
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What should I do if two libraries provide a function with the same name generating a conflict?
... - lest someone else came along, trying to load the thing again. You'd go from one conflict to dozens or hundreds. =] I love this about stackoverflow: we have a tested answer to a question and it has 3 votes. The first (incomplete) answer: 17. =]
– Sniggerfardimungus
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How to solve Permission denied (publickey) error when using Git?
...ount settings
determine which corresponding private key must be associated from your local computer
eval $(ssh-agent -s)
define where the keys are located
ssh-add ~/.ssh/id_rsa
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How to check if a file is a valid image file?
...
I have just found the builtin imghdr module. From python documentation:
The imghdr module determines the type
of image contained in a file or byte
stream.
This is how it works:
>>> import imghdr
>>> imghdr.what('/tmp/bass')
'gif'
Using a m...
Convert pem key to ssh-rsa format
I have a certificate in der format, from it with this command I generate a public key:
8 Answers
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How to make exe files from a node.js app?
...ip up all your files, with a package.json in the root
Change the extension from .zip to .nw
copy /b nw.exe+app.nw app.exe
Just as an added note - I've shipped several production box/install cd applications using this, and it's worked great. Same app runs on windows, mac, linux and over the web.
U...
How to install ia32-libs in Ubuntu 14.04 LTS (Trusty Tahr)
...4.7-dev:i386 is required to extract the Internet Explorer virtual machines from www.modern.ie
– Tek
Aug 7 '14 at 20:39
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