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Extract a substring according to a pattern
...we create a data frame with two columns, one for the part before the colon and one for after, and then extract the latter.
library(dplyr)
library(tidyr)
library(purrr)
DF <- data.frame(string)
DF %>%
separate(string, into = c("pre", "post")) %>%
pull("post")
## [1] "E001" "E002" "E00...
How to resolve “You need to have Ruby and Sass installed and in your PATH for this task to work” War
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Ok I got it. I just had to install Sass using gem install sass and now everything is fine...couldn't be easier.
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Strip all non-numeric characters from string in JavaScript
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Use the string's .replace method with a regex of \D, which is a shorthand character class that matches all non-digits:
myString = myString.replace(/\D/g,'');
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Setting a width and height on an A tag
Is it possible to set the width and height in pixels on an anchor tag? I'd like to have the anchor tag to have a background image while retaining the text inside the anchor.
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Differences between Isotope and Masonry jQuery plugins [closed]
I recently discovered the Masonry and Isotope JQuery plugins. They seem to be functionally almost identical and both appear to have the same author. The only obvious difference I can see is the license.
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How to check postgres user and password? [closed]
A friend of mine done this config on my mac. But I don't know the username and password he had chosen.
2 Answers
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Rails Admin vs. ActiveAdmin [closed]
I've been looking into some rails admin plugins and came across these:
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How to check for file existence [duplicate]
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Check out Pathname and in particular Pathname#exist?.
File and its FileTest module are perhaps simpler/more direct, but I find Pathname a nicer interface in general.
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How do I move a single folder from one Subversion repository to another repository?
...t repository, filter it to only include information about the docs folder, and load it into the other repository.
Would be something like this:
svnadmin dump /svn/old_repos > ./repository.dump
svndumpfilter include path/to/docs --drop-empty-revs --renumber-revs --preserve-revprops < ./reposi...
jekyll markdown internal links
...sily, e.g. render to [Title of post](/correct/permalink) with a single command? I could only do it with filtering which is too verbose.
– Ciro Santilli 郝海东冠状病六四事件法轮功
Dec 3 '14 at 16:50
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