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When should one use RxJava Observable and when simple Callback on Android?
... working on networking for my app. So I decided to try out Square's Retrofit . I see that they support simple Callback
9 ...
A cron job for rails: best practices?
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I'm using the rake approach (as supported by heroku)
With a file called lib/tasks/cron.rake ..
task :cron => :environment do
puts "Pulling new requests..."
EdiListener.process_new_messages
puts "done."
end
To execute from the command line, this is just "rake cron". T...
What is the difference between HAVING and WHERE in SQL?
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HAVING specifies a search condition for a
group or an aggregate function used in SELECT statement.
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SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”. error
...hing worked fine. I tried to repeat the problem in Windows and Ubuntu and it gave me the exact same error. Numerous configurations of the slf4j-api and logback were tested but none seem to work.
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Changing the color of an hr element
... is to change the color of the line produced by <hr> tag.
Although, it has been pointed in comments that, if you change the size of your line, border will still be as wide as you specified in styles, and line will be filled with the default color (which is not a desired effect most of the tim...
How to convert the background to transparent? [closed]
I have no experience with any image processing/editing tools. I am doing a project which requires me to convert the images(small icon) with background colour(red/blue/white) to transparent for the website.
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How can I respond to the width of an auto-sized DOM element in React?
...ut to a more responsive, resizable layout. However, I keep running into limitations with React, and am wondering if there's a standard pattern for handling these issues. In my specific case, I have a component that renders as a div with display:table-cell and width:auto.
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Cannot install packages using node package manager in Ubuntu
... node ) on Ubuntu has been renamed to nodejs because of a name conflict with another package. Here's what the readme. Debian says:
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How do I set the timeout for a JAX-WS webservice client?
...o create an interface for my web service, based on a WSDL. I can interact with the web service no problems, but haven't been able to specify a timeout for sending requests to the web service. If for some reason it does not respond the client just seems to spin it's wheels forever.
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T-SQL CASE Clause: How to specify WHEN NULL
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edited Oct 23 '11 at 18:55
Kirk Woll
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