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Rails - Validate Presence Of Association?
...ires at least 1 associated record to B. Is there a method I can call to make sure this is true, or do I need to write a custom validation?
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Java logical operator short-circuiting
...ch operator, and they are:
false && ... - it is not necessary to know what the right-hand side is because the result can only be false regardless of the value there
true || ... - it is not necessary to know what the right-hand side is because the result can only be true regardless of the v...
Launch Bootstrap Modal on page load
I don't know javascript at all. The bootstrap documentation says to
18 Answers
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Missing XML comment for publicly visible type or member
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Michael Freidgeim
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answered Oct 15 '08 at 6:30
Jon SkeetJon Sk...
Java synchronized method lock on object, or method?
...iables, can 2 threads access those 2 methods at the same time? Does the lock occur on the object, or does it get as specific as the variables inside the synchronized method?
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PostgreSQL delete with inner join
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OmeshOmesh
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What is boxing and unboxing and what are the trade offs?
I'm looking for a clear, concise and accurate answer.
8 Answers
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What is base 64 encoding used for?
I've heard people talking about "base 64 encoding" here and there. What is it used for?
18 Answers
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Iterate an iterator by chunks (of n) in Python? [duplicate]
Can you think of a nice way (maybe with itertools) to split an iterator into chunks of given size?
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How to set custom header in Volley Request
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It looks like you override public Map<String, String> getHeaders(), defined in Request, to return your desired HTTP headers.
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