method EventSource.addEventListener
          
EventSource.addEventListener<K extends keyof EventSourceEventMap>(type: K,listener: (this: EventSource,ev: EventSourceEventMap[K],) => any,options?: boolean | AddEventListenerOptions,): void 
      
K extends keyof EventSourceEventMap
      
    
type: K
      
    
listener: (this: EventSource,ev: EventSourceEventMap[K],) => any
      
    optional
options: boolean | AddEventListenerOptions
      
    void
      
    
EventSource.addEventListener(type: string,listener: (this: EventSource,event: MessageEvent,) => any,options?: boolean | AddEventListenerOptions,): void 
      
listener: (this: EventSource,event: MessageEvent,) => any
      
    optional
options: boolean | AddEventListenerOptions
      
    void
      
    
EventSource.addEventListener(type: string,listener: EventListenerOrEventListenerObject,options?: boolean | AddEventListenerOptions,): void 
      
listener: EventListenerOrEventListenerObject
      
    optional
options: boolean | AddEventListenerOptions
      
    void