NodeJS CLI Terminal Colors

colors.js

/*!
  __defineGetter__(<ANSI supported color>, fn
  http://en.wikipedia.org/wiki/ANSI_escape_code#CSI_codes
 */

['magenta','yellow','green','blue','cyan','red'].forEach(function(color) {
  var colorized = '\u001b[#m';
  String.prototype.__defineGetter__(color, function(){
    var options = {
      cyan    : 6,
      magenta : 5,
      blue    : 4,
      yellow  : 3,
      green   : 2,
      red     : 1,
      reset   : 0
    };
    return colorized.replace(/#/, '3'+options[color])+this+colorized.replace(/#/, 0);
  });
});