There is a whole bunch where that came from. In the javascript world we have a specification for them, is called Fantasy Land. It's geared towards library authors but it could still be useful if you know how to read those weird signatures. Someone actually took the time to go through the spec and made a series posts about it.
Oh, and if you want to check out a cool library with utility functions, go see ramda.
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Nice, didn't knew this one, thank you for your answer
There is a whole bunch where that came from. In the javascript world we have a specification for them, is called Fantasy Land. It's geared towards library authors but it could still be useful if you know how to read those weird signatures. Someone actually took the time to go through the spec and made a series posts about it.
Oh, and if you want to check out a cool library with utility functions, go see ramda.