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Test whether a Ruby class is a subclass of another class

... @JunanChakma Based on how the English word "ancestors" is defined, I agree that the return value should not include B. But it does. The method documentation says, "Returns a list of modules included/prepended in mod (including mod itself)...
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What does the 'Z' mean in Unix timestamp '120314170138Z'?

...Zulu time. Technically, because the definition of nautical time zones is based on longitudinal position, the Z time is not exactly identical to the actual GMT time 'zone'. However, since it is primarily used as a reference time, it doesn't matter what area of Earth it applies to as long as everyon...
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Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]

.... OR You can use a callback, before_save class Task < ActiveRecord::Base before_save :default_values def default_values self.status ||= 'P' # note self.status = 'P' if self.status.nil? might be safer (per @frontendbeauty) end end ...
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How can a Metro app in Windows 8 communicate with a backend desktop app on the same machine?

... mind that you can't use synchronous WCF in Metro. You'll have to use Task-based wrapper which is only asynchronous. And thank you for you question. I was good starting point for me :) share | impr...
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How to change progress bar's progress color in Android

...a layer-list (although I'm guessing that you are building the progress bar based on several layers..). In case I do want to use the XML you've attached - where should I place the it in the project's folder and is there anything more I need to do for creating a progress bar based on the XML settings...
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jQuery change input text value

...put[type=text].sitebg').val('000000'); EDIT: do this to find your input based on the name attribute: $('input[name=sitebg]').val('000000'); share | improve this answer | ...
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Setting up a git remote origin

... @ClementHerreman - it seems like, based on your explanation, using git pull is not so much a "bad idea" as it is a limited solution. Sometimes I find git pull to be a perfectly effective, simple deployment solution when I have a simple scenario. ...
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Restrict varchar() column to specific values?

...efault SQL Server collation is case-insensitive, which applies on the database level. Further info here stackoverflow.com/questions/1439485/… – jwoe Aug 15 '17 at 15:21 add...
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What is the difference between a directory and a folder?

...ry on mass storage, not a virtual store. Say this was specified by a user based on the name displayed in File Explorer. This name could have been overridden by information in an alternate data stream (ADS) on the directory, and your program will not be referring to the file by its true pathname. ...
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How to show current year in view?

...your application is Time Zone sensitive, perhaps Date.current or Time.zone based methods are your best bet. Check out this wonderful Railscast by Ryan on Time Zones share | improve this answer ...