JS function currying

In computer science, curry is the technique of transforming a function that accepts multiple parameters into a function that takes a single parameter (the first parameter of the original function) and returns a new function that accepts the remaining parameters and returns the result. --see Wikipedia curry is the introduction of some parameters in advance to get a simple function. But the pre-passed parameters are kept in the closures, so there are some peculiar features. Example: var adder = function (num) {return function (y) {return num + y;} var inc = Adder (1); var dec = adder ( -1);//inc, Dec now is the two new function that will be passed the parameter value (+/-) 1alert (inc),//100alert (Dec (101)),//100alert (Adder (2)),//102alert (Adder (2) (100) );//102

JS function currying