This article describes the method of deleting array elements in JavaScript. Share it for your reference. The specific analysis is as follows:
In JS, you can delete array elements through delete, but the size of the array will not change after deletion.
<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>Output result
Number of days:7Number of days:7
I hope this article will be helpful to everyone's JavaScript programming.