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How do you find the sum of all the numbers in an array in Java?
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271
In java-8 you can use streams:
int[] a = {10,20,30,40,50};
int sum = IntStream.of(a).sum();
Sys...
String.Join method that ignores empty strings?
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174
VB.NET
String.Join(",", myArray.Where(Function(s) Not String.IsNullOrEmpty(s)))
C#
String.J...
The Ruby %r{ } expression
...t
\s # white space char
(group) # first group
(?:alt1|alt2) # some alternation
end
}x
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Which commit has this blob?
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107
Both of the following scripts take the blob’s SHA1 as the first argument, and after it, opti...
Why is not in HTML 5 Tag list while is?
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194
Remember, the tags are meant to be semantic, not presentational. There is such a thing in Engl...
How to get visitor's location (i.e. country) using geolocation? [duplicate]
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edited May 18 at 15:28
Laurent
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Insert a line break in mailto body
...A. Nothing worked for me.
I tested on Gmail, Yahoo, Apple Mail, Outlook 2010, Outlook.com and Thunderbird with Google Chrome on Mac OSX.
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How do you truncate all tables in a database using TSQL?
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17 Answers
17
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How does the HyperLogLog algorithm work?
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156
The main trick behind this algorithm is that if you, observing a stream of random integers, se...
Convert UNIX epoch to Date object
...as integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion?
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