Python like `zip`-ping

zip.js

var zip = function() {
    var result = [];
    // Only zip array-like items
    var args = Array.prototype.filter.call(arguments, function(el){
        //Make sure the argument is array-like
        return typeof el.length !== "undefined";
    });

    //if we have no items to reduce then return an empty array
    if(args.length === 0) return result;

    var minLength = args.reduce(function(l, r){
        return Math.min(l.length, r.length);
    });

    // Avoid creating a function within a loop
    // Lest Douglas Crockford cast his wrath on me
    var extract = function(e) {
        return e[this];
    };

    for(var i = 0; i < minLength; i++) {
        result.push(args.map(extract, i));
    }

    return result;
};