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<html><body><h2>JavaScript Regular Expressions</h2><p>The lastIndex property specifies the index at which to start the next match:</p><p id="demo"></p><script>let text = "The rain in Spain stays mainly in the plain";let pattern = /ain/g;let result = "";while (pattern.test(text)==true) { result += "Found at position " + pattern.lastIndex + "<br>";}document.getElementById("demo").innerHTML = result;</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_regexp_lastindex by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:13 GMT --></html>