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Rails: How does the respond_to block work?
I'm going through the Getting Started with Rails guide and got confused with section 6.7. After generating a scaffold I find the following auto-generated block in my controller:
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Determine if variable is defined in Python [duplicate]
How do you know whether a variable has been set at a particular place in the code at runtime? This is not always obvious because (1) the variable could be conditionally set, and (2) the variable could be conditionally deleted. I'm looking for something like defined() in Perl or isset() in PHP or...
Java ByteBuffer to String
Is this a correct approach to convert ByteBuffer to String in this way,
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What are rvalues, lvalues, xvalues, glvalues, and prvalues?
In C++03, an expression is either an rvalue or an lvalue .
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Why does C++11's lambda require “mutable” keyword for capture-by-value, by default?
Short example:
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Convert char to int in C and C++
How do I convert a char to an int in C and C++?
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What's the difference between deque and list STL containers?
What is the difference between the two? I mean the methods are all the same. So, for a user, they work identically.
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Filter dataframe rows if value in column is in a set list of values [duplicate]
I have a Python pandas DataFrame rpt :
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Is Java “pass-by-reference” or “pass-by-value”?
I always thought Java uses pass-by-reference .
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Converting camel case to underscore case in ruby
Is there any ready function which converts camel case Strings into underscore separated string?
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