<html>
<body>
<script>
var str = "The rain in Spain stays mainly in the plain";
var patt1 = /ain/g;
while (patt1.test(str)==true)
{
document.write("'ain' found. Index now at: "+patt1.lastIndex);
document.write("<br>");
}
</script>
</body>
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_regexp_lastindex by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:01:32 GMT -->
</html>