HTMLMeterElement: high property

The high property of the HTMLMeterElement interface represents the high boundary of the <meter> element as a floating-point number. It reflects the element's high attribute, or the value of max if not defined. The value of high is clamped by the low and max values.

This property can also be set directly, for example to set a default value based on some condition.

<label for="fuel">Current fuel level:</label>
<meter
  id="fuel"
  min="0"
  max="100"
  low="15"
  high="66"
  optimum="80"
  value="50"></meter>

const meterElement = document.getElementById("fuel");
console.log(meterElement.high); // 66
++meterElement.high;
console.log(meterElement.high); // 67