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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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35 Answers
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Appropriate datatype for holding percent values?
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133
Assuming two decimal places on your percentages, the data type you use depends on how you plan ...
Sorting data based on second column of a file
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346
You can use the sort command:
sort -k2 -n yourfile
-n, --numeric-sort compare according to s...
What is scope/named_scope in rails?
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213
A scope is a subset of a collection. Sounds complicated? It isn't. Imagine this:
You have Users...
Calling a function of a module by using its name (a string)
...attr(foo, 'bar')
result = method_to_call()
You could shorten lines 2 and 3 to:
result = getattr(foo, 'bar')()
if that makes more sense for your use case.
You can use getattr in this fashion on class instance bound methods, module-level methods, class methods... the list goes on.
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How to express a NOT IN query with ActiveRecord/Rails?
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316
Rails 4+:
Article.where.not(title: ['Rails 3', 'Rails 5'])
Rails 3:
Topic.where('id NOT I...
How do you stop Console from popping up automatically in Eclipse
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3 Answers
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what is the preferred way to mutate a React state?
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edited May 31 '14 at 21:45
Brigand
72.4k1717 gold badges147147 silver badges162162 bronze badges
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What is the meaning of “__attribute__((packed, aligned(4))) ”
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3 Answers
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