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How do I convert a Ruby class name to a underscore-delimited symbol?
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Here's what I went for:
module MyModule
module ClassMethods
def class_to_sym
name_without_namespace = name.split("::").last
name_without_namespace.gsub(/([^\^])([A-Z])/,'\1_\2').downcase.to_sym
end
end
def self.included(base)
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Store query result in a variable using in PL/pgSQL
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I shortened the syntax with a table alias additionally.
Update: I removed my code example and suggest to use IF EXISTS() instead like provided by @Pavel.
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Gradle, “sourceCompatibility” vs “targetCompatibility”?
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In my opinion, “sourceCompatibility” means the what feature you can use in your source code.For example,if you set sourceCompatibility to 1.7, then you can't use lambda expression which a new feature in java 8 even though yo...
What is an SDL renderer?
...r will have the coordinate x + w, y + h
You can read more about SDL2 on my blog.
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Do browsers parse javascript on every page load?
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Thanks, I saw that in my travels but couldn't find any other supporting evidence. I'll edit the answer with it.
– Jivings
Feb 13 '12 at 19:20
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python numpy ValueError: operands could not be broadcast together with shapes
... of type numpy.matrix, then asterisk can be used as matrix multiplication. My recommendation is to keep away from numpy.matrix, it tends to complicate more than simplify things.)
Your arrays should be fine with numpy.dot; if you get an error on numpy.dot, you must have some other bug. If the shapes...
Is there a performance difference between a for loop and a for-each loop?
...hese loops do the exact same, I just want to show these before throwing in my two cents.
First, the classic way of looping through List:
for (int i=0; i < strings.size(); i++) { /* do something using strings.get(i) */ }
Second, the preferred way since it's less error prone (how many times hav...
How to import existing *.sql files in PostgreSQL 8.4?
... you mentioned I'm now in third steps. but how I can import .sql file from my local machine. I tried \i [full path with extension] but I get the error message .sql no such file or directory. Could you please give an example.
– user2403573
Jun 29 '13 at 11:47
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Recommended way to stop a Gradle build
...ion later on is to call the ant fail task. It's slightly easier to read in my opinion and you can give a nice message to the user without use of --stacktrace.
task (tarball, dependsOn: warAdmin) << {
ant.fail('The sky is falling!!')
}
Gives you a message like:
* What went wrong:
Execu...
Android Studio/Intellij Idea: “Table of Contents” for a class
... exactly what I was looking for. Too bad I couldn't have figured it out on my own.
– Ryan Smith
Aug 19 '13 at 2:58
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