partial

is simple to use

var partial = require('partial');
var foo = function(x,y,z) { return (x*y) + z }

var bar = partial(foo);

and we're done! Now we can simply say

bar(2,3)(4); // 10
bar(2)(3,4); // 10

var fix = bar(2,3);
fix(4); // 10

usage

Simply pass any function to partial, and if you wish, any arguments you want to fix.

var bar = partial(foo);
var baz = bar(2,3);

is identical to

var baz2 = partial(foo,2,3);

both can be used like so:

baz(4); // 10
baz2(4); // 10

Right side partial function application is through .rapply i.e.

var bar = partial.rapply(foo);
var baz = bar(3,7); // y = 3, z = 7

baz(2); // (2*3) + 7 = 13