Laravel how to pass null value in route parameter in front end

Question

I have a form and I'm trying to pass null value into the $dev-id parameter but it doesnt work, instead ti will replace the dev id parameter with the $id as shown in my code at the bottom,

The reason i needed it to be null because I'm using this function for 2 different page but one of the page doesn't have $dev_id . any help is appreciated

HTML:

<form method="post"
    action="{{ route('admin.developers.admins.edit.post',['admin' => $admin, 'dev_id' => null, 'id' => $id]) }}" autocomplete="off" novalidate>

web.php:

Route::post('developers/{dev_id?}/admins/{id}/edit', 'Admin\DeveloperAdminController@postEditDeveloperAdmin')->name('admin.developers.admins.edit.post')->where(['dev_id' => '[0-9]+', 'id' => '[0-9]+']);

Answer 1

You can pass those parametres in the form of hidden input and in controller use request to get those values Add these to yur form

 <input type="hidden" value="anything" name="dev_id"> 
Instead you are using vue use `v-model` instead of name and value 

Now modify your form like this

<form method="post"
    action="{{ route('admin.developers.admins.edit.post',['admin' => $admin,'id' => $id]) }}" autocomplete="off" novalidate>

Now you are access that using $request object in your logic and check if the value is null or not