A brief discussion on the usage of $destroy in AngularJS

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In The controller listens to the $destroy event, which is triggered when the route jumps.
Usage:

$scope.$on("$destroy", function() {
    //清除配置,不然scroll会重复请求
  })

A commonly used place is that when the page creates a timer and jumps to other pages, the timer is still executing. The second time you enter this page, the timer will be created repeatedly. controller, so this method is needed to destroy all timers of the current page when listening to leave the current route;

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