JavaScript For...In Statement

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JavaScript For...In Statement

The for...in statement loops through the elements of an array or through the properties of an object.

Syntax

for (variable in object)
  {
  code to be executed
  }

Note: The code in the body of the for...in loop is executed once for each element/property.

Note: The variable argument can be a named variable, an array element, or a property of an object.

Example

Use the for...in statement to loop through an array:

Example

<html>
<body>

<script type="text/javascript">
var x;
var CricPlayers = new Array();
CricPlayers[0] = "Sachin";
CricPlayers[1] = "Pointing";
CricPlayers[2] = "Maxwell";

for (x in CricPlayers)
  {
  document.write(CricPlayers[x] + "<br />");
  }
</script>

</body>
</html>
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