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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; } </script> </body> </html>