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AS3 Get formatted time from dirty timestamp string

/ Published in: ActionScript 3
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I was working on a project where the timestamp string I was getting from the backend developer was pretty dirty in the way it was formatted. For example, it looked like "/Date(1310127448000+0100)/". I needed to get a nicely formatted time from it in the format hrs:mins

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  1. var timestampFromBackend:String = "/Date(1310127448000+0100)/";
  2. trace("timestampFromBackend: " + timestampFromBackend);
  3. var formattedTime:String = formatedTimeFromTimestamp(timestampFromBackend);
  4. trace("formattedTime: " + formattedTime);
  5.  
  6. function formatedTimeFromTimestamp(str:String):String {
  7. 	/*
  8. 	Might get passed something like this ...
  9. 	/Date(1310127448000+0100)/
  10. 	but it also works if you are passed ...
  11. 	1310127448000+0100	
  12. 	*/
  13.  
  14. 	var openBracketIndex:int;
  15. 	var closeBracketIndex:int;
  16.  
  17. 	if (str.indexOf("(") != -1) {
  18. 		openBracketIndex = str.indexOf("(");
  19. 	} else {
  20. 		openBracketIndex = -1;
  21. 	}
  22. 	if (str.indexOf(")") != -1) {
  23. 		closeBracketIndex = str.indexOf(")");
  24. 	} else {
  25. 		closeBracketIndex = str.length;
  26. 	}
  27.  
  28. 	str = str.substring(openBracketIndex + 1, closeBracketIndex);
  29. 	var arr:Array = new Array();
  30. 	if (str.indexOf("+") != -1) {
  31. 		arr = str.split("+");
  32. 		str = arr[0];
  33. 	} else if (str.indexOf("-") != -1) {
  34. 		arr = str.split("-");
  35. 		str = arr[0];
  36. 	}
  37.  
  38. 	var timestampDate:Date = new Date(Number(str));
  39. 	var hrs:String = String(timestampDate.getHours());
  40. 	if (hrs.length < 2) {
  41. 		hrs = "0" + hrs;
  42. 	}
  43. 	var mins:String = String(timestampDate.getMinutes());
  44. 	if (mins.length < 2) {
  45. 		mins = "0" + mins;
  46. 	}
  47.  
  48. 	str = hrs + ":" + mins;
  49. 	return str;
  50. }
  51.  
  52. // OUTPUT
  53. // timestampFromBackend: /Date(1310127448000+0100)/
  54. // formattedTime: 13:17

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