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<!DOCTYPE html>
<html>
<body>
​
Number: <input type="number" id="myNumber">
​
<p>Click the button to increment the value of the number field by 1.</p>
​
<p><strong>Note:</strong> This is the same as clicking the up arrow on the right side of the number field.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p><strong>Note:</strong> The stepUp() method is not supported by Internet Explorer.</p>
​
<script>
function myFunction() {
  document.getElementById("myNumber").stepUp();
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_number_stepup2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:17:18 GMT -->
</html>
​
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