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copied!<p>For what it's worth, here's a modification of the solution to convert to any base up to 64:</p> <pre><code>// Convert decimal into a base between 2 and 64 var decToBase = function() { var decToBaseMap = [ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'Y', 'Z', '+', '/']; return function(number, base) { if (base < 2 || base > 64) { return "#base should be between 2 and 64#"; } var negative = ''; if (number < 0) { negative = '-'; } number = number.toString().split('.'); var integer = Math.abs(number[0]); var fraction = number[1]; var result = ''; do { result = decToBaseMap[integer % base] + result; integer = parseInt(integer / base, 10); } while (integer > 0); if (fraction) { var decimalPlaces = fraction.toString().length; result += '.'; fraction = parseFloat('.' + fraction); var x = 0; do { x++; var res = (fraction * base).toString().split('.'); result = result + decToBaseMap[res[0]]; if (res[1]) { fraction = parseFloat('.' + res[1]); } else { break; } } while (x < decimalPlaces); } return negative + result; }; }(); alert(decToBase(2011, 64)); // displays "VR" </code></pre> <p>You can play with it here: <a href="http://jsfiddle.net/kaicarver/d3Zn2/" rel="nofollow">http://jsfiddle.net/kaicarver/d3Zn2/</a></p>

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