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What is “function*” in JavaScript?
...ion about generators I've come across so far. I could see using this in an app, vs previously just understanding it theoretically.
– wes
Aug 6 '15 at 16:17
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Is there any git hook for pull?
...ot on there, it doesn't exist.
That said, there is a post-merge hook, and all pulls include a merge, though not all merges are pulls. It's run after merges, and can't affect the outcome. It never gets executed if there were conflicts; you'd have to pick that up with the post-commit hook if it reall...
rmagick gem install “Can't find Magick-config”
I get the error shown below when attempting to install the rmagick gem. I am on Snowleopard 10.6 using RVM, Ruby 1.9.2-head and Rails 3.05. Responses to similar questions recommended installing ImageMagick, which I successfully did. Other suggested installing the "libmagick9-dev library", however, I...
Convert XmlDocument to String
...using Windows.Data.Xml.Dom.XmlDocument version of XmlDocument (used in UWP apps for example), you can use yourXmlDocument.GetXml() to get the XML as a string.
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Applying .gitignore to committed files
...wered Sep 23 '11 at 11:05
Matt BallMatt Ball
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How to tell if rails is in production?
...roduction.log
if there are entries populating that log after you hit the app, you're in production mode.
second way:
in one of your views (probably the layout is good), just add
<%= "Environment: #{RAILS_ENV}" %>
And that will show you what the environment that you're running in.
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Should I write script in the body or the head of the html? [duplicate]
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I would answer this with multiple options actually, the some of which actually render in the body.
Place library script such as the jQuery library in the head section.
Place normal script in the head unless it becomes a performance/page load issue.
Place script associa...
Finding duplicate values in a SQL table
...ly group on both of the columns.
Note: the older ANSI standard is to have all non-aggregated columns in the GROUP BY but this has changed with the idea of "functional dependency":
In relational database theory, a functional dependency is a constraint between two sets of attributes in a relation...
Checking for an empty field with MySQL
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If you want to find all records that are not NULL, and either empty or have any number of spaces, this will work:
LIKE '%\ '
Make sure that there's a space after the backslash. More info here: http://dev.mysql.com/doc/refman/5.0/en/string-com...
How to read multiple text files into a single RDD?
... RDD. The API here is just an exposure of Hadoop's FileInputFormat API, so all the same Path options apply.
– Nick Chammas
Jun 4 '14 at 15:04
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