@atlaskit/editor-common/dist/esm/utils/performance/is-performance-api-available.js

A package that contains common classes and components for editor and renderer

var hasRequiredPerformanceAPIs;
export function isPerformanceAPIAvailable() {
  if (hasRequiredPerformanceAPIs === undefined) {
    hasRequiredPerformanceAPIs = typeof window !== 'undefined' && 'performance' in window && ['measure', 'clearMeasures', 'clearMarks', 'getEntriesByName', 'getEntriesByType', 'now'
    // Ignored via go/ees005
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    ].every(function (api) {
      return !!performance[api];
    });
  }
  return hasRequiredPerformanceAPIs;
}
export function isPerformanceObserverAvailable() {
  return !!(typeof window !== 'undefined' && 'PerformanceObserver' in window);
}
export function isPerformanceObserverLongTaskAvailable() {
  return isPerformanceObserverAvailable() && PerformanceObserver.supportedEntryTypes && PerformanceObserver.supportedEntryTypes.includes('longtask');
}