Convert text to base 2-65536 using Unicode characters

to_base_n.js

(function(){
    var toBaseN = function(n, base) {
        if(base < 2 || base > 65535) {
            throw "Base must be between 2 and 65535 inclusive"
        }

        var str = "";
        var sign = "";

        if(n < 0) {
            n *= -1;
            sign = "-";
        }

        if(n === 0) {
            str = String.fromCharCode(n);
        }

        while (n !== 0) {
            var mod = n % base;
            n = Math.floor(n/base);
            str = String.fromCharCode(mod) + str;
        }

        return sign + str;
    }

    window.toBaseN = toBaseN;
})()