delete
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Syntax |
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The delete operator deletes properties from objects and array elements from arrays by making them undefined. |
Some objects, such as variables created by the var statement, are not affected by the delete operator. |
<html>
<script language="JavaScript">
<!--
theDate = new Date();
document.write("theDate=",theDate,"<br>Deleting theDate!<br>");
delete theDate;
document.write("theDate=",theDate); //theDate is undefined
-->
</script>
</html>
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