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Group by multiple columns in dplyr, using string vector input
...l support for string arguments, perhaps this gist is useful:
https://gist.github.com/skranz/9681509
It contains bunch of wrapper functions like s_group_by, s_mutate, s_filter, etc that use string arguments. You can mix them with the normal dplyr functions. For example
cols = c("cyl","gear")
mtcar...
Error handling with node.js streams
...;
} else {
console.log('Stream is done reading');
}
});
See this github PR for more discussion.
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How to implement a Map with multiple keys? [duplicate]
...e commons-collections is typed.
A typed version can be found at:
https://github.com/megamattron/collections-generic
This will exactly support your use case:
MultiKeyMap<k1,k2,...,kn,v> multiMap = ??
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Can I use jQuery with Node.js?
... work), in which case I would recommend the Cheerio module: matthewmueller.github.com/cheerio
– Simon East
Mar 31 '13 at 7:02
7
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How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
...
The interested reader should give a look at ExSwift github.com/pNre/ExSwift
– AsTeR
Dec 17 '14 at 14:34
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How to change the remote repository for a git submodule?
...cal repository
git config --file=.gitmodules submodule.Submod.url https://github.com/username/ABC.git
git config --file=.gitmodules submodule.Submod.branch Development
git submodule sync
git submodule update --init --recursive --remote
Please look at the blog for screenshots: Changing GIT submodu...
Common CSS Media Queries Break Points [duplicate]
...er resolution. Here is a nice little CSS gist that may add some hints gist.github.com/levibuzolic/947778
– DannyB
May 8 '13 at 14:59
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Automatic creation date for Django model form objects?
...dd or auto_now works just fine. It sets the field before saving the model (github.com/django/django/blob/stable/3.0.x/django/db/models/…).
– yndolok
Jul 23 at 20:34
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Why is using the JavaScript eval function a bad idea?
... @bobince code.google.com/p/json-sans-eval works on all browsers, so does github.com/douglascrockford/JSON-js . Doug Crockford's json2.js does use eval internally, but with checks. Besides, it's forward-compatible with built-in browser support for JSON.
– Martijn
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How to prevent favicon.ico requests?
...mage/x-icon;," type="image/x-icon">
For references see here:
https://github.com/h5bp/html5-boilerplate/issues/1103
https://twitter.com/diegoperini/status/4882543836930048
UPDATE 1:
From the comments (jpic) it looks like Firefox >= 25 doesn't like the above syntax anymore. I tested on Firef...