// The perfMetrics object is created by the code that goes in .
perfMetrics.onFirstInputDelay(function(delay, evt) {
ga('send', 'event', {
eventCategory: 'Perf Metrics',
eventAction: 'first-input-delay',
eventLabel: evt.type,
// Event values must be an integer.
eventValue: Math.round(delay),
// Exclude this event from bounce rate calculations.
nonInteraction: true,
});
});
