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Why sizeof int is wrong, while sizeof(int) is right?
We know that sizeof is an operator used for calculating the size of any datatype and expression, and when the operand is an expression, the parentheses can be omitted.
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What is the overhead of creating a new HttpClient per call in a WebAPI client?
What should be the HttpClient lifetime of a WebAPI client?
Is it better to have one instance of the HttpClient for multiple calls?
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When to catch java.lang.Error?
In what situations should one catch java.lang.Error on an application?
16 Answers
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what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
I am wondering what is the best way to convert a json formatted key value pair to ruby hash with symbol as key:
example:
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Setup RSpec to test a gem (not Rails)
It is pretty easy with the added generator of rspec-rails to setup RSpec for testing a Rails application. But how about adding RSpec for testing a gem in development?
I am not using jeweler or such tools. I just used Bundler ( bundle gem my_gem ) to setup the structure for the new gem and edit the *...
unable to install pg gem
I tried using gem install pg but it doesn't seem to work.
20 Answers
20
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How to get element by class name? [duplicate]
Using JavaScript, we can get element by id using following syntax:
4 Answers
4
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Difference between abstraction and encapsulation?
What is the precise difference between encapsulation and abstraction?
39 Answers
39
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Is there a performance gain in using single quotes vs double quotes in ruby?
Do you know if using double quotes instead of single quotes in ruby decreases performance in any meaningful way in ruby 1.8 and 1.9.
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How does database indexing work? [closed]
Given that indexing is so important as your data set increases in size, can someone explain how indexing works at a database-agnostic level?
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