I have this vue component inside a subcomponent:

show.blade.php

  new Vue({
        el: '.v-thread',
        name: 'Thread',
        data: {
            posts: @json($posts),
            selectablePosts: @json($selectablePosts),
            postActions: {
                'delete': "{{ Forum::route('bulk.post.delete') }}",
                'restore': "{{ Forum::route('bulk.post.restore') }}"

            },
            postActionMethods: {
                'delete': 'DELETE',
                'restore': 'POST'
            },
            selectedPostAction: 'delete',
            selectedPosts: [],
            selectedThreadAction: null
        },
        created() {
            this.posts.data = this.posts.data.filter(post => post.sequence != 1);
        },
        methods: {
            toggleAll() {
                this.selectedPosts = (this.selectedPosts.length < this.selectablePosts.length) ? this.selectablePosts : [];
            },
            submitThread(event) {
                if (this.threadActionMethods[this.selectedThreadAction] === 'DELETE' && !confirm("{{ trans('forum::general.generic_confirm') }}")) {
                    event.preventDefault();
                }
            },
            submitPosts(event) {
                if (this.postActionMethods[this.selectedPostAction] === 'DELETE' && !confirm("{{ trans('forum::general.generic_confirm') }}")) {
                    event.preventDefault();
                }
            }
        }
    });

Because of the written style, I receive an error from VS Code:

Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.javascript

I created a tsconfig.json like this:

{
    "compilerOptions": {
        "experimentalDecorators": true,
        "allowJs": true
    }
}

and I also enabled the enabled the settings for 'Experimental JS Decorators' in VS:

    "js/ts.implicitProjectConfig.experimentalDecorators": true,

Still I have this issue. Did I miss something?