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<!DOCTYPE html>
<html>
<body>
<h2>JavaScript String Methods</h2>
<p>Try to replace "Microsoft" with "mytat" in the paragraph below:</p>
<button onclick="myFunction()">Try it</button>
<p id="demo">Please visit Microsoft!</p>
<script>
function myFunction() {
  let text = document.getElementById("demo").innerHTML; 
  document.getElementById("demo").innerHTML =
  text.replace("MICROSOFT","mytat");
}
</script>
<p>The replace() method is case sensitive. MICROSOFT (with upper-case) will not be replaced.</p>
</body>
</html>