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<!DOCTYPE html>
<html>
<body>
<h2>JavaScript Regular Expressions</h2>
<p>Do a global search for any of the specified alternatives (red|green):</p>
<p id="demo"></p>
<script>
let text = "re, green, red, green, gren, gr, blue, yellow";
let result = text.match(/(red|green)/g);
document.getElementById("demo").innerHTML = result;
</script>
</body>
</html>