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<!DOCTYPE html>
<html>
<body>
​
<p>Click one of the buttons to perform a search for the characters "THIS" in a string.</p>
​
<button onclick="myFunction()">Global case-sensitive search</button>
<button onclick="myFunction2()">Global case-insensitive search</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var str = "THIS This this";
  var patt1 = /[THIS]/g;
  var result = str.match(patt1);
  document.getElementById("demo").innerHTML = result;
}
</script>
​
<script>
function myFunction2() {
  var str = "THIS This this";
  var patt1 = /[THIS]/gi;
  var result = str.match(patt1);
  document.getElementById("demo").innerHTML = result;
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_regexp_charset_gi by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:01:33 GMT -->
</html>
​
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