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How do I check if the Java JDK is installed on Mac?
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I got "javac 1.6.0_37" is it equivalent of jdk 6 or 7?
– angry kiwi
Jan 12 '13 at 11:26
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How do I use a custom deleter with a std::unique_ptr member?
...* ... */ }
// ...
};
Notice that you don't need to write any lambda or custom deleter here because destroy is already a deleter.
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Can I simultaneously declare and assign a variable in VBA?
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There is no shorthand in VBA unfortunately, The closest you will get is a purely visual thing using the : continuation character if you want it on one line for readability;
Dim clientToTest As String: clientToTest = clientsToTest(i)
Dim ...
Why does ++[[]][+[]]+[+[]] return the string “10”?
This is valid and returns the string "10" in JavaScript ( more examples here ):
9 Answers
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NerdTree - Reveal file in tree
Is there a shortcut which reveal the current file in the NerdTree directory panel.
5 Answers
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Emacs in Windows
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I use EmacsW32, it works great. EDIT: I now use regular GNU Emacs 24, see below.
See its EmacsWiki page for details.
To me, the biggest advantage is that:
it has a version of emacsclient that starts the Emacs server if no server is running (...
Using do block vs braces {}
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Ruby cookbook says bracket syntax has higher precedence order than do..end
Keep in mind that the bracket syntax
has a higher precedence than the
do..end syntax. Consider the following
two snippets of code:
1.upto 3 do |x|
puts x
end
1.upto 3 { |x| puts x }
# SyntaxE...
What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
...the title says: what does it mean to encapsulate a variable in {} , "" , or "{} "? I haven't been able to find any explanations online about this - I haven't been able to refer to them except for using the symbols, which doesn't yield anything.
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What can , and be used for?
Can anyone clarify how we can use in general, or a in real world example, this snippet?
2 Answers
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Client-server synchronization pattern / algorithm?
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You should look at how distributed change management works. Look at SVN, CVS and other repositories that manage deltas work.
You have several use cases.
Synchronize changes. Your change-log (or delta history) approach looks good for this. Clients send their deltas to the s...