Function measureLongTasks

testing/amp-performance-extension/measure.js:50–60

()

}

function measureLongTasks() {
  const supported = PerformanceObserver.supportedEntryTypes;
  if (!supported || supported.indexOf('longtask') === -1) {
    return;
  }
  longTasks = [];
  const longTaskObserver = new PerformanceObserver((list) =>
    list.getEntries().forEach((entry) => longTasks.push(entry))
  );
  longTaskObserver.observe({entryTypes: ['longtask']});
}

function measureTimeToInteractive() {
  measureStarted = Date.now();