UrlHandlingStrategy
class
Provides a way to migrate AngularJS applications to Angular.
abstract class UrlHandlingStrategy {
  abstract shouldProcessUrl(url: UrlTree): boolean
  abstract extract(url: UrlTree): UrlTree
  abstract merge(newUrlPart: UrlTree, rawUrl: UrlTree): UrlTree
}   Methods
|     shouldProcessUrl()      | 
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|   Tells the router if this URL should be processed.  |  
|   When it returns true, the router will execute the regular navigation. When it returns false, the router will set the router state to an empty state. As a result, all the active components will be destroyed.  |  
|     extract()      | 
|---|
|   Extracts the part of the URL that should be handled by the router. The rest of the URL will remain untouched.  |  
|     merge()      | 
|---|
|   Merges the URL fragment with the rest of the URL.  |  
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Licensed under the Creative Commons Attribution License 4.0.
    https://v7.angular.io/api/router/UrlHandlingStrategy