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Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
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Scala list concatenation, ::: vs ++
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Legacy. List was originally defined to be functional-languages-looking:
1 :: 2 :: Nil // a list
list1 ::: list2 // concatenation of two lists
list match {
case head :: tail => "non-empty"
case Nil => "empty"
}
Of course, Scala evolved other collections, in an ad-hoc manner....
How to convert Milliseconds to “X mins, x seconds” in Java?
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Use the java.util.concurrent.TimeUnit class:
String.format("%d min, %d sec",
TimeUnit.M...
Use HTML5 to resize an image before upload
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Here is what I ended up doing and it worked great.
First I moved the file input outside of th...
How to read multiple text files into a single RDD?
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Fundamental difference between Hashing and Encryption algorithms
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How do I do top 1 in Oracle?
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261
If you want just a first selected row, you can:
select fname from MyTbl where rownum = 1
You ...
PHP Function with Optional Parameters
I've written a PHP function that can accepts 10 parameters, but only 2 are required. Sometimes, I want to define the eighth parameter, but I don't want to type in empty strings for each of the parameters until I reach the eighth.
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The tilde operator in Python
...complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is equivalent to (-x) - 1.
The reified form of the ~ operator is provided as operator.invert. To support this o...
Is there a version of JavaScript's String.indexOf() that allows for regular expressions?
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