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sprintf equivalent

Posted on 1997-06-05
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Last Modified: 2011-04-14
is there a built-in javascript function that accomplishes:
      
      sprintf("%.02f", number )
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Question by:johnmac
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garik earned 50 total points
ID: 1266337
Nope. Can't even call Java method to accomplish it.
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Author Comment

by:johnmac
ID: 1266338
is there anyway to accomplish this specific case
which is to format a real number?

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Expert Comment

by:garik
ID: 1266339
Quick & dirty, but should work fine - even if the number is in E notation:

function format(val) {
  sign = val < 0 ? "-":"";
  rval = Math.abs(Math.round(val*100));
  str = rval.toString();
  if(rval < 10) str = "0.0"+str;
  else if(rval < 100) str = "0."+str;
  else str = str.substring(0, str.length-2)
     + "." + str.substring(str.length-2, str.length);
  return sign+str;
}

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Author Comment

by:johnmac
ID: 1266340
thanx garik!

johnmac
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