JavaScript Interview Question:

How to delete an array entry using JavaScript?

Submitted by: Administrator

The "delete" operator removes an array element in JavaScript , but oddly does not change the size of the array.

<script type="text/javascript">
var days = ["Sunday","Monday","Tuesday","Wednesday", "Thursday","Friday","Saturday"];
document.write("Number of days:"+days.length); delete days[4];
document.write("<br />Number of days:"+days.length);
</script>

This produces
Number of days:7
Number of days:7
Submitted by: Administrator