voodootikigod (owner)

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gist: 176709 Download_button fork
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Public Clone URL: git://gist.github.com/176709.git
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String.prototype.map = function(fun) {
    var len = this.length;
    var res = "";
    for (var i = 0; i < len; i++)
    {
      res += fun(this[i])
    }
    return res;
};