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<!DOCTYPE html>
<html>
<body>
<h2>JavaScript Math.random()</h2>
<p>Every time you click the button, getRndInteger(min, max) returns a random number between 0 
and 9 (both included):</p>
<button onclick="document.getElementById('demo').innerHTML = getRndInteger(0,10)">Click Me</button>
<p id="demo"></p>
<script>
function getRndInteger(min, max) {
  return Math.floor(Math.random() * (max - min)) + min;
}
const rndInt = randomIntFromInterval(1, 6)
</script>
</body>
</html>