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Is it better to reuse a StringBuilder in a loop?
I've a performance related question regarding use of StringBuilder.
In a very long loop I'm manipulating a StringBuilder and passing it to another method like this:
...
Does Ruby have a string.startswith(“abc”) built in method?
... String#start_with? was introduced in ruby 1.8.7 and 1.9.0 - for older versions you may want to use one of the regex or index versions mentioned in other answers.
– Hamish Downer
Sep 7 '11 at 13:25
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Haskell error parse error on input `='
...out change.
GHCi, version 8.0.1.20161213: http://www.haskell.org/ghc/ :? for help
Prelude> f x = x * 2
Prelude> f 4
8
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Convert dictionary to list collection in C#
... this was really helpful. I needed to apply .Where(...) to the dict before returning the keys, but that method doesn't return a dictionary, so I couldn't access the Keys property. using this select after the where worked great
– Martín Coll
Aug 16 '11 at ...
Scala @ operator
...ables one to bind a matched pattern to a variable. Consider the following, for instance:
val o: Option[Int] = Some(2)
You can easily extract the content:
o match {
case Some(x) => println(x)
case None =>
}
But what if you wanted not the content of Some, but the option itself? That wo...
Return first match of Ruby regex
I'm looking for a way to perform a regex match on a string in Ruby and have it short-circuit on the first match.
5 Answers
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JPQL IN clause: Java-Arrays (or Lists, Sets…)?
... way to go about this in SQL would be to build an "IN" clause. JPQL allows for IN, but it seems to require me to specify every single parameter to IN directly (as in, "in (:in1, :in2, :in3)").
...
Output of git branch in tree like fashion
... log --graph" (2011):
git config --global alias.lgb "log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset%n' --abbrev-commit --date=relative --branches"
git lgb
Original answer (2010)
git show-branch --list comes close of what you ar...
Web Service vs WCF Service
...b Services and so on.
You can’t compare them because WCF is a framework for building interoperable applications. If you like, you can think of it as a SOA enabler. What does this mean?
Well, WCF conforms to something known as ABC, where A is the address of the service that you want to communicat...
Difference between JAX-WS, Axis2 and CXF
... or Axis2. It can also depend on what you are trying to integrate with. For example, CXF has top notch Spring support as well as very good OSGi support.
CXF also has other things besides just JAX-WS. It has a compliant JAX-RS implementation as well and supports exposing services as both REST a...