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What's the $unwind operator in MongoDB?
...rious operation like sorting, searcing etc.
To know more about $unwind :
https://docs.mongodb.com/manual/reference/operator/aggregation/unwind/
To know more about aggregation :
https://docs.mongodb.com/manual/reference/operator/aggregation-pipeline/
...
How to detect iPhone 5 (widescreen devices)?
...n .iPadProBig
}
return .unknown
}
}
See it in action
https://gist.github.com/hfossli/bc93d924649de881ee2882457f14e346
Note: If e.g. iPhone 6 is in zoomed mode the UI is a zoomed up version of iPhone 5. These functions is not determining device type, but display mode thus iPhon...
What is the purpose of python's inner classes?
...
Quoted from http://www.geekinterview.com/question_details/64739:
Advantages of inner class:
Logical grouping of classes: If a class is useful to only one other class then it is logical to embed it in that class and keep the t...
What are deferred objects?
...on() { alert("complete"); });
Working Example From Eric Hynds blog post: http://jsfiddle.net/ehynds/Mrqf8/
jqXHR
As of jQuery 1.5, the $.ajax() method returns the jXHR object, which is a superset of the XMLHTTPRequest object. For more information, see thejXHR section of the $.ajax entry
From JQ...
Name node is in safe mode. Not able to leave
... leave
I used the hdfs command instead of the hadoop command.
Check out http://ask.gopivotal.com/hc/en-us/articles/200933026-HDFS-goes-into-readonly-mode-and-errors-out-with-Name-node-is-in-safe-mode- link too
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How are POST and GET variables handled in Python?
...server. 1. CGI, as a protocol, defines the data transport mechanism in the HTTP protocol. 2. Python can be configured to run as a CGI-script in Apache. 3. The CGI module in Python offers some convenience functions.
Since the HTTP protocol is language-independent, and that Apache's CGI extension is ...
Skip certain tables with mysqldump
...mant.
More information of how to use the exclude option you can read here: https://dev.mysql.com/doc/refman/5.7/en/mysqlpump.html#mysqlpump-filtering
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sbt-assembly: deduplication found error
...e.spark" %% "spark-core" % "1.1.0" % "provided"
If needed, read more at
https://github.com/sbt/sbt-assembly#excluding-jars-and-files
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AttributeError: 'module' object has no attribute 'urlopen'
...n 3 look in the docs:
import urllib.request
with urllib.request.urlopen("http://www.python.org") as url:
s = url.read()
# I'm guessing this would output the html source code ?
print(s)
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How to do a https request with bad certificate?
Say I want to get https://golang.org programatically. Currently golang.org (ssl) has a bad certificate which is issued to *.appspot.com So when I run this:
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