Use delete operator to delete properties or array elements in JavaScript
Description
The following code shows how to use delete operator to delete properties or array elements.
Example
<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
theDate = new Date();<!--from w w w.j a va 2s .com-->
document.write("theDate=",theDate,"<br>Deleting theDate!<br>");
delete theDate;
document.write("theDate=",theDate); //theDate is undefined
</script>
</body>
</html>
The code above generates the following result.
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