How can you check if there is a previous route with Vue router?

[Masa-Shin]

I am using Vue Router 4 and would like to show a back button on my website only if there is a previous route. Checking window.history.length does not work well because the length does not increase in cases where the same component is reused upon transition. Is there a good method for this?

[Deckluhm]

Checking window.history.length does not work well because the length does not increase in cases where the same component is reused upon transition.

Are you sure you aren't doing anything unconventional? I just tested it and it adds entries to window.history.

Maybe your links are replacing the current location instead of creating a new history entry?

Also, for Vue Router related questions, I suggest to post your questions in Vue Router repo: https://github.com/vuejs/router/discussions

[Masa-Shin]

Thank you for your guidance! As you said it was not an issue with the standard feature of Vue Router but the flag variable I used had somehow lost its reactivity.