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<html><body><input type="number" id="myNumber" value="2" readonly><p>Click the button to find out if the number field is read-only or not.</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { let x = document.getElementById("myNumber").readOnly; document.getElementById("demo").innerHTML = x;}</script></body></html>