<!DOCTYPE html>
<html lang="en-US">
<body>
<p>Click the button to check whether "i" modifier is set.</p>
<button onclick="myFunction()">Click me</button>
<p id="point"></p>
<script>
function myFunction() {
var str = "a1 b12 c144 d1728 e20736";
// Try to change 'i' to 'g'
var pattern = /\d{3}/i;
var result = pattern.ignoreCase;
document.getElementById("point").innerHTML = result;
}
</script> </body>
</html>