Decorate library class methods with timers

withTimer.ts

function withTimer(func: (...args: any[]) => any, userDefinedName?: string): (...args: any[]) => any {
  const functionName = userDefinedName || func.name || 'unknown';
  console.log('Decorator applied to:', functionName);
  return function (...args) {
    const start = performance.now(); // Get high-resolution time before execution
    const result = func.apply(this, args);
    //func(...args); // Execute the original function
    const end = performance.now(); // Get high-resolution time after execution
    const duration = end - start; // Calculate the duration

    console.log(`Function '${functionName}' executed in ${duration.toFixed(2)} ms.`);
    return result;
  };
}

// i.e. GeoJsonLayer.prototype.updateState = withTimer(GeoJsonLayer.prototype.updateState, `updateState`);