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<html><body><form action="/action_page.php"> <input type="checkbox" id="myCheck" name="vehicle" value="Bike" checked> I have a bike<br> <input type="submit" value="Submit"></form><p>Submit the form to see the value of the name and value attribute of the checkbox, as received input (the checkbox must be checked, or nothing is returned).</p><p>Click the "Try it" button to change the value from "Bike" to "newCheckboxValue".</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { document.getElementById("myCheck").value = "newCheckboxValue"; document.getElementById("demo").innerHTML = "The value of the value attribute was changed. Try to submit the form again.";}</script></body></html>