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<!DOCTYPE html>
<html>
<body>
​
<p>Peter's score: <meter id="myMeter" value="0.3" high="0.9" low="0.1" optimum="0.5"></meter></p>
​
<p>Click the button to change the value of the optimum attribute of the gauge above.</p>
​
<button onclick="myFunction()">Try it</button>
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<p><b>Note:</b> The optimum property is not supported in Internet Explorer and Safari 5 (and earlier versions).</p>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  document.getElementById("myMeter").optimum = "0.7";
  document.getElementById("demo").innerHTML = "The value of the optimum attribute was changed from '0.5' to '0.7'.";
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_meter_optimum2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:17:46 GMT -->
</html>
​
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