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How to replace multiple white spaces with one white space

...on isn't as simple as other posters have made it out to be (and as I originally believed it to be) - because the question isn't quite precise as it needs to be. There's a difference between "space" and "whitespace". If you only mean spaces, then you should use a regex of " {2,}". If you mean any wh...
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Non greedy (reluctant) regex matching in sed?

... For doing it in place use options -pi -e. – reallynice Dec 10 '13 at 17:27 13 ...
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What is tail recursion?

...return x; } else { return x + recsum(x - 1); } } If you called recsum(5), this is what the JavaScript interpreter would evaluate: recsum(5) 5 + recsum(4) 5 + (4 + recsum(3)) 5 + (4 + (3 + recsum(2))) 5 + (4 + (3 + (2 + recsum(1)))) 5 + (4 + (3 + (2 + 1))) 15 Note how every recur...
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Differences between Oracle JDK and OpenJDK

...a commercial license. You should now pay attention to which JDK you're installing as Oracle JDK without subscription could stop working. source Ref: List of Java virtual machines share | improve th...
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How to count duplicate value in an array in javascript

...- it was me; I was browsing on mobile, and have clicked the button w/o actually noticing. Once I found out it was too late to revert. Apologies for that, the answer is really good. If you want to edit it, I'd be glad to reverse. – Todor Minakov Jan 19 '19 at 10...
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Using IQueryable with Linq

...t;T>. Say, for example, you have a Products table, and you want to get all of the products whose cost is >$25. If you do: IEnumerable<Product> products = myORM.GetProducts(); var productsOver25 = products.Where(p => p.Cost >= 25.00); What happens here, is the database loads ...
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Reading string from input with space character? [duplicate]

... %c represents a character just like %d represents a integer, %*c all characters. So totally it means read all characters until you encounter a new line character @NathanProgrammer – Nobody Jul 5 '17 at 15:33 ...
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Is there any difference between a GUID and a UUID?

...122) look similar and serve similar purposes, there are subtle-but-occasionally-important differences. Specifically, some Microsoft GUID docs allow GUIDs to contain any hex digit in any position, while RFC4122 requires certain values for the version and variant fields. Also, [per that same link], ...
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How to extract numbers from a string and get an array of ints?

I have a String variable (basically an English sentence with an unspecified number of numbers) and I'd like to extract all the numbers into an array of integers. I was wondering whether there was a quick solution with regular expressions? ...
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Best way to get InnerXml of an XElement?

...(0.364) Method I used a single XML document with 20 identical nodes (called 'hint'): <hint> <strong>Thinking of using a fake address?</strong> <br /> Please don't. If we can't verify your address we might just have to reject your application. </hint> The...