How to import local modules or relative .js file in electron

login.js

function my_alert(text) {
    $("#warning_text").text(text)
    $('#exampleModalCenter').modal('show')
}
module.exports = { my_alert }

renderer.js

const { my_alert } = require('./login.js')

index.html

<script>
    require('popper.js')
    window.$ = window.jQuery = require('jquery')
    require('./node_modules/bootstrap/dist/js/bootstrap.min.js')

    require("./login.js")
    require('./renderer.js')
</script>