Remove() not working with id for documents

Hello, I tried removing documents from the index by passing id, as mentioned in documentation as “the fastest method”. This way, i cannot remove the document. Then, i tried removing the document by passing the document as remove argument, and this way it worked. (Attacched snippet) Am I missing something? Is it supposed to work like this?

Edit: i think this issue is somewhat related to #100

var FlexSearch = require("flexsearch");

var docs = [{
    data: {
        id: 0,
        title: "Foo",
        body: {
            content: "Foobaz"
        }
    }
}, {
    data: {
        id: 1,
        title: "Bar",
        body: {
            content: "Foobar"
        }
    }
}];

var index = new FlexSearch({
    debug: true,
    profile: 'default',
    doc: {
        id: "data:id",
        field: [
            "data:title",
            "data:body:content"
        ]
    }
});

index.add(docs);
index.remove(docs[1]) //<-- This one works, document is deleted
index.remove(1) //<-- This one NOT. Document is still searchable

console.log(index.search('bar'))

[lludol]

@MatteoBassan and @cezarsmpio I found a solution by looking at the source code:

index.remove({ id: 1 });

[ts-thomas]

Please change over to the version >= 0.7.x, thanks a lot.