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Where does the “flatmap that s***” idiomatic expression in Scala come from?
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The reasoning behind this phrase is that you can replace a lot of tedious if/then/else code you...
How can a string be initialized using “ ”?
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String s4 = new String("Hello"); // String object
String s5 = new String("Hello"); // String object
Note : String literals are stored in a common pool. This facilitates sharing of storage for strings with the same contents to conserve storage. String objects allocated via new o...
Can someone explain collection_select to me in clear, simple terms?
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edited Jul 27 '15 at 16:07
amiuhle
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answered Jan 18 '...
“git rm --cached x” vs “git reset head -- x”?
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oadams
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answered Apr 27 '11 at 6:14
manojldsmanojlds
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How do I check for a network connection?
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You can check for a network connection in .NET 2.0 using GetIsNetworkAvailable():
System.Net.N...
Is it unnecessary to put super() in constructor?
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zb226
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answered Jan 13 '10 at 2:48
cletuscletus
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When to use a “has_many :through” relation in Rails?
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edited Dec 1 '15 at 10:07
Arslan Ali
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What is a sealed trait?
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edited Apr 2 '14 at 4:57
Adi Inbar
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answere...
Filter rows which contain a certain string
...0 2.620 16.46 0 1 4 4 Mazda RX4
2 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 Mazda RX4 Wag
3 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1 Toyota Corolla
4 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1 Toyota Corona
If you would like to do it the other way round...
How do I change the background color of a plot made with ggplot2
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edited Apr 12 '14 at 16:05
PatrickT
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answered Ju...