For more <i>ad hoc</i> testing, you can also determine the current value of a particular piece of instrumentation by opening a devtools console here on <code>about:glean</code> and using the <code>testGetValue()</code> API like <code>Glean.metricCategory.metricName.testGetValue()</code> for a metric named <code>metric.category.metric_name</code>.
Am ragor o brofion <i>ad hoc</i>, gallwch hefyd bennu gwerth cyfredol darn penodol o offeryniaeth trwy agor consol devtools yma ar <code>about:glean</code> a defnyddio'r API <code>testGetValue()</code> fel <code>Glean.metricCategory.metricName.testGetValue()</code> ar gyfer metrig o'r enw <code>metric.category.metric_name</code>.