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Logger slf4j advantages of formatting with {} instead of string concatenation
...e vast majority of logging statements have 2 or fewer parameters, so SLF4J API up to version 1.6 covers (only) the majority of use cases. The API designers have provided overloaded methods with varargs parameters since API version 1.7.
For those cases where you need more than 2 and you're stuck wi...
How to select rows from a DataFrame based on column values?
...sitional indexing (df.iloc[...])
Label indexing (df.xs(...))
df.query(...) API
Below I show you examples of each, with advice when to use certain techniques. Assume our criterion is column 'A' == 'foo'
(Note on performance: For each base type, we can keep things simple by using the pandas API or ...
How do I delete all messages from a single queue using the CLI?
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To purge queue you can use following command (more information in API doc):
curl -i -u guest:guest -XDELETE http://localhost:15672/api/queues/vhost_name/queue_name/contents
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static files with express.js
... It is a global in your nodejs module. nodejs.org/docs/latest/api/globals.html#globals_dirname
– ChrisCantrell
Oct 28 '14 at 18:10
7
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Rails: How does the respond_to block work?
...xecutes your block, passing a Responder into the format argument.
http://api.rubyonrails.org/v4.1/classes/ActionController/Responder.html
The Responder does NOT contain a method for .html or .json, but we call these methods anyways! This part threw me for a loop.
Ruby has a feature called method...
What's the best Django search app? [closed]
...arch - a new model based search abstraction layer that currently supports Xapian, Solr and Whoosh. Looks like it's well supported and documented.
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Interface/enum listing standard mime-type constants
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From https://docs.oracle.com/javaee/7/api/javax/ws/rs/core/MediaType.html :
staticjava.lang.String APPLICATION_ATOM_XML "application/atom+xml"
staticMediaType APPLICATION_ATOM_XML_TYPE "application/atom+xml"
staticjava.lang.String APPLI...
How to get a Static property with Reflection
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Just wanted to clarify this for myself, while using the new reflection API based on TypeInfo - where BindingFlags is not available reliably (depending on target framework).
In the 'new' reflection, to get the static properties for a type (not including base class(es)) you have to do something l...
WPF Application that only has a tray icon
...ol from System.Windows.Forms, or alternatively you can use the Notify Icon API provided by Windows API. WPF Provides no such equivalent, and it has been requested on Microsoft Connect several times.
I have code on GitHub which uses System.Windows.Forms NotifyIcon Component from within a WPF applica...
How can I increment a date by one day in Java?
... Apache. Check this http://commons.apache.org/proper/commons-lang/javadocs/api-2.6/org/apache/commons/lang/time/DateUtils.html. It is handy especially when you have to use it multiple places in your project and would not want to write your one liner method for this.
The API says:
addDays(Date...