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Emulate ASP.NET's AppendFormat Method In Javascript

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Learn how to emulate ASP.NET's AppendFormat method in Javascript. AppendFormat is essentially a simple form of concatenation in ASP.NET.

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Copy this code and paste it in your HTML 
  1. <script type="text/javascript">
  2. function AppendFormat(input,arr)
  3. {
  4.  for (i = 0; i < arr.length; i++)
  5.  {
  6.   while (input.indexOf("{"+i+"}") != -1)
  7.   {
  8.    input = input.replace("{"+i+"}", arr[i]);
  9.   }
  10.  }
  11.  return input;
  12. }
  13.  
  14. document.write(AppendFormat("Lorem ipsum dolor sit {0} {1} amet, consectetur {0} adipiscing {0} elit.", ["TEST", "TEST2"]));
  15. </script>

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