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How do I encode and decode a base64 string?

..., I'll agree that wrapping a deref error is definitely dubious (plus we're all slowly agreeing to the fact that null as a concept is a bit of a hack to begin with), but we can still see some effects otherwise: the parameter name given in the exception might not be correct if left unchecked. ...
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Checkout one file from Subversion

... The really simple solution is to access the repository with a web browser. – dolmen Jul 9 '10 at 8:32 11 ...
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Accessing MP3 metadata with Python [closed]

... ID3 tag which the other modules I looked at couldn't. You'll have to install using pip or download the tar and execute python setup.py install from the source folder. Relevant examples from the website are below. Reading the contents of an mp3 file containing either v1 or v2 tag info: import...
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What does “WARN Could not determine content-length of response body.” mean and how to I get rid of i

...e to a future release of Ruby. I'm using rails 3.2.0 on ruby 1.9.3-p0 installed through RVM as a single user. So the location in my case is: ~/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/webrick/httpresponse.rb The location of the file to be altered differs depending on the type of installation, R...
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Why is Everyone Choosing JSON Over XML for jQuery? [closed]

...ng over to JSON . Even Microsoft has integrated support for JSON. What is all the hype over JSON? 19 Answers ...
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How to sort objects by multiple keys in Python?

Or, practically, how can I sort a list of dictionaries by multiple keys? 8 Answers 8 ...
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Replace all whitespace characters

I want to replace all occurrences of white space characters (space, tab, newline) in JavaScript. How to do so? 9 Answer...
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How to generate a random string in Ruby

...).chr }.join I spend too much time golfing. (0...50).map { ('a'..'z').to_a[rand(26)] }.join And a last one that's even more confusing, but more flexible and wastes fewer cycles: o = [('a'..'z'), ('A'..'Z')].map(&:to_a).flatten string = (0...50).map { o[rand(o.length)] }.join ...
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How to convert std::string to lower case?

...a.begin(), [](unsigned char c){ return std::tolower(c); }); You're really not going to get away without iterating through each character. There's no way to know whether the character is lowercase or uppercase otherwise. If you really hate tolower(), here's a specialized ASCII-only alternative...
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Calculating distance between two points, using latitude longitude?

...Java code given by Dommer above gives slightly incorrect results but the small errors add up if you are processing say a GPS track. Here is an implementation of the Haversine method in Java which also takes into account height differences between two points. /** * Calculate distance between two po...