Angular 2: Harnessing the power of dynamic backlinks on landing pages!

I am facing an issue with my Angular 2 item page. When a user lands on the page via a deep link, the Location.back() function does not work as there is no history in the Location object. To address this, I attempted to use a workaround where if the back() function fails, the app triggers the navigate() function. However, upon navigating back to the items page, an error is thrown:

clickGoToItemsPage() {
    this._location.back();
    this._router.navigate(['ItemsPage']);
}

The error message reads:

EXCEPTION: Error: Uncaught (in promise): TypeError: Cannot read property 'constructor' of undefined

This error occurs after the second function is triggered and the page is on the ItemsPage. Can anyone suggest a solution for this issue?

javascripttypescriptangular

Answer №1

Could you please provide more details on your query? I am not entirely clear on what you are asking. One way to handle errors is by capturing the error thrown by this._location.back() and then deciding whether to proceed with this._router.navigate(...). If this._location.back() is successful, this._router.navigate(...) will not be executed. Does this align with your requirements?

clickGoToItemsPage() {
    try {
        this._location.back();
    } catch() {
        this._router.navigate(['ItemsPage']);
    }
}

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