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What is causing the error `string.split is not a function`?

Why am I getting... 5 Answers 5 ...
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Singleton by Jon Skeet clarification

I wish to implement Jon Skeet's Singleton pattern in my current application in C#. 2 Answers ...
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Override ActiveRecord attribute methods

An example of what I'm talking about: 4 Answers 4 ...
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In Jinja2, how do you test if a variable is undefined?

Converting from Django, I'm used to doing something like this: 6 Answers 6 ...
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Git stash twice

I had to quickly switch git branches, so I ran git stash , but I had to run it again because one of my files needed editing. ...
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Can't su to user jenkins after installing Jenkins

I've installed jenkins and I'm trying to get into a shell as Jenkins to add an ssh key. I can't seem to su into the jenkins user: ...
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How do I run a Ruby file in a Rails environment?

I want to run a Ruby file in the context of a Rails environment. rails runner almost does what I want to do, but I'd like to just give it the file name and arguments. I'm pretty sure this is possible since I've done it before. Can someone remind me how to do this? ...
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In which situations do we need to write the __autoreleasing ownership qualifier under ARC?

I'm trying to complete the puzzle. 3 Answers 3 ...
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slashes in url variables

I have set up my coldfusion application to have dynamic urls on the page, such as 4 Answers ...
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How to make PyCharm always show line numbers

I cannot seem to be able to find the setting to enable line numbers for all files, but I have to always right click and enable this on per file basis. ...