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Scala: What is the difference between Traversable and Iterable traits in Scala collections?
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121
To put it simply, iterators keep state, traversables don't.
A Traversable has one abstract me...
Getting attribute using XPath
...g (where lang=eng in book title), for
the first element?
Use:
/*/book[1]/title/@lang
This means:
Select the lang attribute of the title element that is a child of the first book child of the top element of the XML document.
To get just the string value of this attribute use the standard XPa...
How to invoke a Linux shell command from Java
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edited Sep 11 '09 at 15:45
answered Sep 11 '09 at 13:12
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How can I get a view's current width and height when using autolayout constraints?
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edited Feb 6 at 17:35
answered Nov 24 '12 at 15:23
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Resolving a 'both added' merge conflict in git?
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141
If you use git rm git will remove all versions of that path from the index so your resolve act...
RSpec: how to test if a method was called?
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141
it "should call 'bar' with appropriate arguments" do
expect(subject).to receive(:bar).with("...
How can I join multiple SQL tables using the IDs?
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edited Sep 18 '13 at 20:26
Sigurd
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How to rollback just one step using rake db:migrate
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361
For starters
rake db:rollback will get you back one step
then
rake db:rollback STEP=n
Will ...