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Ruby's ||= (or equals) in JavaScript?

I love Ruby's ||= mechanism. If a variable doesn't exist or is nil , then create it and set it equal to something: 6 Ans...
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How do I remove duplicates from a C# array?

I have been working with a string[] array in C# that gets returned from a function call. I could possibly cast to a Generic collection, but I was wondering if there was a better way to do it, possibly by using a temp array. ...
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How to remove the first character of string in PHP?

How to use PHP , Remove the first character : 13 Answers 13 ...
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C# switch statement limitations - why?

When writing a switch statement, there appears to be two limitations on what you can switch on in case statements. 17 Answe...
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How do I remove diacritics (accents) from a string in .NET?

I'm trying to convert some strings that are in French Canadian and basically, I'd like to be able to take out the French accent marks in the letters while keeping the letter. (E.g. convert é to e , so crème brûlée would become creme brulee ) ...
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DateTime.ToString() format that can be used in a filename or extension?

I want to add a timestamp to filenames as files are created but most of the DateTime methods I've tried output something with spaces and slashes. For instance: ...
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Default implementation for Object.GetHashCode()

How does the default implementation for GetHashCode() work? And does it handle structures, classes, arrays, etc. efficiently and well enough? ...
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Duplicate keys in .NET dictionaries?

Are there any dictionary classes in the .NET base class library which allow duplicate keys to be used? The only solution I've found is to create, for example, a class like: ...
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Set margin size when converting from Markdown to PDF with pandoc

I have created an RMarkdown file in RStudio and managed to knit it with knitr into an HTML and .md file. Next, I used pandoc to convert the .md file into a PDF file (I get an error if I try and convert from the .html file). However, the PDF that is produced have massive margins (like this http://...
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How to print like printf in Python3?

In Python 2 I used: 9 Answers 9 ...