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What is the best way to uninstall gems from a rails3 project?
I installed all of my gems using bundler via the Gemfile. I thought (mistakenly) that if I deleted a gem from my Gemfile and ran 'bundle install' that the deleted gems would be uninstalled. I've looked at the bundler help file and, so far as I can tell, it does not have a way to uninstall gems.
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The maximum value for an int type in Go
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Can someone explain exactly what ^uint(0) and ^uint(0) >> 1 do?
– Arijoon
Jun 29 '16 at 16:25
18
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Custom exception type
...or = InvalidArgumentException;
This is basically a simplified version of what disfated posted above with the enhancement that stack traces work on Firefox and other browsers. It satisfies the same tests that he posted:
Usage:
throw new InvalidArgumentException();
var err = new InvalidArgumentEx...
Flatten nested dictionaries, compressing keys
...ct(d, join=..., lift=...) which can be adapted to many purposes and can do what you want. Sadly it is fairly hard to make a lazy version of this function without incurring the above performance penalties (many python builtins like chain.from_iterable aren't actually efficient, which I only realized ...
Why is i++ not atomic?
...IMIT; i = i + 1); because it would be inappropriate to use the atomic i++. What's worse, programmers coming from C or other C-like languages to Java would use i++ anyway, resulting in unnecessary use of atomic instructions.
Even at the machine instruction set level, an increment type operation is u...
How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails
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This is close to what I'm thinking. I guess a person could write a plugin that would do something like: SampleModel.find(:all, :select => "DISTINCT(*)", :conditions => ["date > #{self.date}"], :limit => 1, :order => 'date...
Android: Difference between Parcelable and Serializable?
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@Sujith what do you mean by reflection is used? What is reflection?
– AnV
Oct 1 '16 at 14:31
11
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Android - Package Name convention
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what if someone took my website name as a package name for his Android app? Can I take down this app from the store?
– Mohammad AlBanna
Jul 1 '16 at 20:37
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Ruby: extend self
In Ruby, I understand the basic idea of extend . However, what's happening in this segment of code? Specifically, what does extend do? Is it just a convenient way of making the instance methods into class methods? Why would you do it this way rather than specifying class methods from the beginnin...
Check if full path given
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@SmirkinGherkin so what is the difference between a rooted and absolute path?
– Jason Axelson
Mar 1 '13 at 1:23
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