GuardsCheckStart
表示路由的守卫(Guard)阶段的开始。
An event triggered at the start of the Guard phase of routing.
      
      class GuardsCheckStart extends RouterEvent {
  constructor(id: number, url: string, urlAfterRedirects: string, state: RouterStateSnapshot)
  urlAfterRedirects: string
  state: RouterStateSnapshot
  toString(): string
  // 继承自 router/RouterEvent
  constructor(id: number, url: string)
  id: number
  url: string
}
    构造函数
      
      参数
  | 
属性
| 属性 | 说明 | 
|---|---|
 urlAfterRedirects: string | Declared in constructor. | 
 state: RouterStateSnapshot | Declared in constructor. | 
方法
      
      参数没有参数。 返回值
  |