Partial Application in JavaScript Revisited 1

partial-application-post-1.js

Function.prototype.partial = function () {
    var fn = this, args = Array.prototype.slice.call(arguments);
    return function () {
        var arg = 0;
        for (var i = 0; i < args.length && arg < arguments.length; i++)
            if (args[i] === undefined)
                args[i] = arguments[arg++];
        return fn.apply(this, args);
    };
};