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How do I check if string contains substring? [duplicate]
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Replace comma with newline in sed on MacOS?
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Upvoted. For more info see the "QUOTING" section of man bash.
– tboyce12
Apr 1 '15 at 18:23
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Difference between using bean id and name in Spring configuration file
...From the Spring reference, 3.2.3.1 Naming Beans:
Every bean has one or more ids (also
called identifiers, or names; these
terms refer to the same thing). These
ids must be unique within the
container the bean is hosted in. A
bean will almost always have only one
id, but if a bean has...
How to map calculated properties with JPA and Hibernate
...read: Hibernate Derived Properties - Performance and Portability.
Without more details, I can't give a more precise answer but the above link should be helpful.
See also:
Section 5.1.22. Column and formula elements (Hibernate Core documentation)
Section 2.4.3.1. Formula (Hibernate Annotations do...
npm install vs. update - what's the difference?
...ev flag is added
Why use npm install at all?
Because npm install does more when you look besides handling your dependencies in package.json.
As you can see in npm install you can ...
manually install node-modules
set them as global (which puts them in the shell's PATH) using npm install -g &l...
Most efficient way to concatenate strings?
...nd that, when executing 1000 concatenations or less, String.Join() is even more efficient than StringBuilder.
StringBuilder sb = new StringBuilder();
sb.Append(someString);
The only problem with String.Join is that you have to concatenate the strings with a common delimiter.
Edit: as @ryanversaw...
SQL (MySQL) vs NoSQL (CouchDB) [closed]
... manual
over automatic transmission. Secondly,
NoSQL allows you to eke more
performance out of the system by
eliminating a lot of integrity checks
done by relational databases from the
database tier. Again, this is similar
to how you can get more performance
out of your car by drivin...
vector::at vs. vector::operator[]
... case" option rather than at() everywhere. That way you can hope for a bit more performance in release mode, just in case you ever need it.
– Steve Jessop
Feb 21 '12 at 11:01
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What's the most efficient way to erase duplicates and sort a vector?
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I think your results are wrong. In my tests the more duplicated elements the faster vector (comparative) is, actually scales the other way around. Did you compile with optimizations on and runtime checks off?. On my side vector is always faster, up to 100x depending on the...