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What is the difference between the dot (.) operator and -> in C++? [duplicate]
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Note that this is only for raw pointers. For class types that overload the operator, it has some other interesting properties...
– David Rodríguez - dribeas
Jul 17 '12 at 18:19
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Why do I get an UnsupportedOperationException when trying to remove an element from a List?
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@Pentium: one more thing: you shouldn't be creating a new instance of Random everytime. Make it a static field and seed it only once.
– polygenelubricants
Jun 3 '10 at 12:28
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Find all records which have a count of an association greater than zero
...up clause, the code above will return duplicate projects for projects with more than one vacancies. To remove the duplicates, use
Project.joins(:vacancies).group('projects.id')
UPDATE:
As pointed out by @Tolsee, you can also use distinct.
Project.joins(:vacancies).distinct
As an example
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Remove all special characters, punctuation and spaces from string
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How to insert a value that contains an apostrophe (single quote)?
... should only ever worry about this issue when you manually edit data via a raw SQL interface since writing queries outside of development and testing should be a rare occurrence. In code there are techniques and frameworks (depending on your stack) that take care of escaping special characters, SQL ...
Automatic TOC in github-flavoured-markdown
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Get The Current Domain Name With Javascript (Not the path, etc.)
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cprcrack for some reason I thought more international (to america) tlds contained multiple dots. Thanks for correcting!
– tbranyen
Sep 21 '14 at 15:54
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Bytecode features not available in the Java language
...re following the specification strictly, the class names are actually much more constrained, but the constraints are not enforced.
– leviathanbadger
May 4 '13 at 3:27
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What does the unary plus operator do?
...le. I am sure there are other times when unary + can help treat your bytes more like numbers instead of like text.
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How to insert a SQLite record with a datetime set to 'now' in Android application?
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@erik Can you give more information, I am not exactly getting what you said.
– Rikin Patel
Apr 30 '15 at 3:08
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