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A logger for just about everything.
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get colors in your node.js console
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the complete solution for node.js command-line programs
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simple, flexible, fun test framework
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yargs the modern, pirate-themed, successor to optimist.
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Full featured Promises/A+ implementation with exceptionally good performance
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elegant & feature rich browser / node HTTP with a fluent API
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Streams3, a user-land copy of the stream library from Node.js
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