Translations is javascript files

Are you using a js framework or anything? I usually just send the translation data to the javascript in the blade template. This is easy if you're using something like Vue.

No, just simple javascript files I use only jQuery .

The problem is that I have some strings in js files and I don't know how to translate them.

What do you mean, where are you translating them ?

They are in messages.php but don' t know hot to use in js file. In blade I'm using

@lang('messages.hello')

How to call this translation in js file?

You can't, not directly. If you want to access it at runtime from within js

1. Either have an ajax-route setup for your translations.

2. Place them at some place on your html file, so that you can retrieve it from within js.

// In blade file
    <meta name="en.messages.hello" content="@lang('messages.hello',[], 'en')">
    <meta name="fr.messages.hello" content="@lang('messages.hello',[], 'fr')">

// Now you can easily access them from js.

I gave this package a try and it's working pretty good. https://github.com/rmariuzzo/Laravel-JS-Localization

@dneykov Where do you need translated strings? I tend to pass any strings in mark-up to JavaScript, like this:

<button type="submit" data-confirm="{{ trans('messages.confirm_delete') }}">

$('[data-confirm]').on('click', function (e) {
    var message = $(this).data('confirm'); // Will use translated string from Blade
    
    if (! confirm(message)) {
        e.preventDefault();
        e.stopImmediatePropagation();
    }
});

I used the https://github.com/rmariuzzo/Laravel-JS-Localization and worked without any issues.

Reminder: add asset('messages.js') inside your script tag to load before you use

and then do your implementation for example in my case :

            $('.join-now').html("<a class='dropdown-toggle' href='#' data-
           toggle='dropdown'>" +Lang.get('home.Navigation.logout')+"</a>");