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Non loop way of creating a string of a certain length
* Creates a string by repeating a string a certain number of times
* @param str The String to repeat
* @param count The number of times to repeat the string
function repeatString(str:String, count:uint):String {
var output:Vector.<uint> = new Vector.<uint>(count, true);
return output.join("").replace(/0/g, str);
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