get value render express-handlebars in javascripts

I render a link image to file home.hbs with code below:

app.get("/", async (req, res) => {
    linkHA = await GetData("select *from MyImage");
    //LinkHA like: https://i.imgur.com/qV5uuOz.jpeg
    res.render("home", {
    AnhNen: linkHA.recordset[0].imagelink
    })
})

In HTML very easier to get image link value with way : But I don't know how to get the values I was rendered I use jquery and try :

    <script>
    $(document).ready(() => {
        var link = // How i can assign value I was rendered
        document.body.style.backgroundImage =
            `url(${link})`
    })
    </script>