These are Haskell's functions ported to javascript.
Some are missing and some don't behave exactly the same.
You can try them with a console (firebug or others).
All functions can be curried!!
All list(array) functions do work on regular strings:
filter( isVowel, 'hey how are you' ) == 'eoaeou'; take( 5, 'abcdefghi' ) == 'abcde'; maximum( 'ajcdbe' ) == 'j';
The function length is called length'
Most functions work on objects/maps, the same way as on arrays.
To use operator functions:
hs['+']( 1, 2 ) == 3; map( hs['**'](2), [1,2,3,4] ) == [2,4,8,16];
hs is a function itself, is specially useful to call operators:
hs('+', 1, 2) == 3; map( hs('**', 2), [1,2,3,4] ) == [2,4,8,16];
hs._ works the same as hs but flips the 2 arguments"
map( hs._('**', 2), [1,2,3,4] ) == [1,4,9,16]; filter( hs._('>', 2), [1,2,3,4] ) == [3,4];