Function currying using javascript.

Curry.js

function curry(f, arg) {
    // Return a new curried function. Mmmm, spicy.
    return function curriedFunction() {
        // Take the other arguments and join them with our
        // curried arg.
        var args = Array.prototype.slice.call(arguments);
        args.unshift(arg);
        // Apply the function.
        return f.apply(null, args);
    };
}

// Example:
function concatStrings(front, back) {
    return front + back;
}
var prefixWithFoo = curry(concatStrings, "Foo");

console.log(prefixWithFoo("Bat"));