a property
      
      dynamic
      get
      a
      
    
    
    
Implementation
/* double | NaN */ dynamic get a => js_util.getProperty(this, 'a');
      
      set
      a
      (dynamic newValue) 
      
    
    
    
Implementation
set a(/* double | NaN */ dynamic newValue) {
  js_util.setProperty(this, 'a', newValue);
}