JavaScript method to delete array elements_javascript tips

The example in this article describes how to delete array elements in JavaScript. Share it with everyone for your reference. The specific analysis is as follows:

You can delete array elements in JS 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 results

Number of days:7
Number of days:7

I hope this article will be helpful to everyone’s JavaScript programming design.