Javascript Data Type How to - Convert array to JSON string back and forth

Question

We would like to know how to convert array to JSON string back and forth.

Answer


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
<!-- ww w  .j  a  v a  2s  .co  m-->
  var yourarr=["test1", "test2", "test3"];
  var afterStringify = JSON.stringify(yourarr);
  document.writeln('After Stringify:'+afterStringify);
  document.writeln('<br/>');
  var prevArr=JSON.parse(afterStringify);
  document.writeln('After Parsing:'+prevArr);
  document.writeln('<br/>');
  document.writeln(prevArr[1]);

</script>
</head>
<body>
</body>
</html>

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