There are four ways to do this:
str = "" + num + ""; str = String(num); str = num.toString(); str = "" + num;
num.toString() method should be the fastest, but for some reason it is not. You can test this yourself using this tool: http://jsperf.com/number-to-string/2 . Usually the fastest methods are
"" + num and
String(num). I usually use the
"" + num because for me it’s more clear what’s happening and it’s easier to write.