A Sample Real-time Web Application using Ember.js, REST API, and SignalR

// String and Number utilities function
// http://leapon.net/en/random-name-generator-javascript
String.random = function () {

    function rnd(minv, maxv) {
        if (maxv < minv) return 0;
        return Math.floor(Math.random() * (maxv - minv + 1)) + minv;
    }

    var minlength, maxlength, prefix, suffix;
    minlength = 4;
    maxlength = 8;

    prefix = prefix || '';
    suffix = suffix || '';
    //these weird character sets are intended to cope with the nature of English (e.g. char 'x' pops up less frequently than char 's')
    //note: 'h' appears as consonants and vocals
    var vocals = 'aeiouyh' + 'aeiou' + 'aeiou';
    var cons = 'bcdfghjklmnpqrstvwxz' + 'bcdfgjklmnprstvw' + 'bcdfgjklmnprst';
    var allchars = vocals + cons;
    //minlength += prefix.length;
    //maxlength -= suffix.length;
    var length = rnd(minlength, maxlength) - prefix.length - suffix.length;
    if (length < 1) length = 1;
    //alert(minlength + ' ' + maxlength + ' ' + length);
    var consnum = 0;
    //alert(prefix);
    /*if ((prefix.length > 1) && (cons.indexOf(prefix[0]) != -1) && (cons.indexOf(prefix[1]) != -1)) {
    //alert('a');
    consnum = 2;
    }*/
    if (prefix.length > 0) {
        for (var i = 0; i < prefix.length; i++) {
            if (consnum == 2) consnum = 0;
            if (cons.indexOf(prefix[i]) != -1) {
                consnum++;
            }
        }
    }
    else {
        consnum = 1;
    }

    var name = prefix;

    for (var i = 0; i < length; i++) {
        //if we have used 2 consonants, the next char must be vocal.
        if (consnum == 2) {
            var touse = vocals;
            consnum = 0;
        }
        else touse = allchars;
        //pick a random character from the set we are goin to use.
        var c = touse.charAt(rnd(0, touse.length - 1));
        name = name + c;
        if (cons.indexOf(c) != -1) consnum++;
    }
    name = name.charAt(0).toUpperCase() + name.substring(1, name.length) + suffix;
    return name;

}

Number.random = function (length) {
    return Math.random().toString().slice(-length);
}