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Applying a function to every row of a table using dplyr?
...ys to "use a combination of: tidyr::nest(); dplyr::mutate(); purrr::map()" github.com/hadley/purrrlyr/blob/…
– momeara
Feb 20 '18 at 16:16
...
Patterns for handling batch operations in REST web services?
... API it is a non-intuitive one-off. Also, the above implementation is how GitHub has implemented PATCH.
To sum it up, it is possible to adhere to RESTful principles with batch actions and still have acceptable performance.
...
Updating packages in Emacs
...ter at some point.
Melpa takes a URL to e.g. the EmacsWiki lisp area or a github repo, and builds a package automatically from it. Thus it is usually at most a day behind whatever it is tracking. Although it tracks upstream, I've never had a problem in practice, and this is where most of my packa...
How to implement has_many :through relationships with Mongoid and mongodb?
...d collection via another it would still require multiple queries.
https://github.com/mongoid/mongoid/issues/544
Normally if you have a many-many relationship in a RDBMS you would model that differently in MongoDB using a field containing an array of 'foreign' keys on either side. For example:
cla...
Creating a daemon in Linux
...leton code that shows the basic steps. This code can now also be forked on GitHub: Basic skeleton of a linux daemon
/*
* daemonize.c
* This example daemonizes a process, writes a few log messages,
* sleeps 20 seconds and terminates afterwards.
*/
#include <stdio.h>
#include <stdlib.h&...
Change navbar color in Twitter Bootstrap
...efault navbar and Inverted Navbar)) or download your own copy from https://github.com/twbs/bootstrap.
You will find the navbar settings in variables.less. navbar.less is used to compile the navbar (depends on variables.less and mixins.less).
Copy the 'navbar-default section' and fill in your own c...
How to parse an RSS feed using JavaScript?
...you want to use a plain javascript API, there is a good example at https://github.com/hongkiat/js-rss-reader/
The complete description at https://www.hongkiat.com/blog/rss-reader-in-javascript/
It uses fetch method as a global method that asynchronously fetches a resource. Below is a snap of code...
What XML parser should I use in C++? [closed]
...e. It is a header-only library with no dependencies.
There is a RapidXML "GitHub patch" that allows it to also work with namespaces.
I Care About Performance But Not Quite That Much
Yes, performance matters to you. But maybe you need something a bit less bare-bones. Maybe something that can handle...
Left Align Cells in UICollectionView
... (in case they vary in height).
You can simply download it here:
https://github.com/mischa-hildebrand/AlignedCollectionViewFlowLayout
The usage is straight-forward and explained in the README file. You basically create an instance of AlignedCollectionViewFlowLayout, specify the desired alignment ...
When would anyone use a union? Is it a remnant from the C-only days?
...programming language interpreters, e.g. the definition of struct object in github.com/petermichaux/bootstrap-scheme/blob/v0.21/scheme.c
– Adam Rosenfield
Jan 28 '11 at 5:14
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