Untitled

const url = require('url');
const path = require('path');

module.exports.Save = async(dialog) => {

const mainWindowHTML = url.format({
    pathname: path.join(__dirname , "./htmls/MainWindow.html"),
    protocol: "file",
    slashes: true
    });

const text = mainWindowHTML.getTextAreaText();
    console.log(text);
}

module.exports.New = async(dialog) => {

}

module.exports.Exit = async(window) => {
    window.close();
}

<html lang="en">
<head>
    <title>document</title>
</head>
<body>
    <textarea id="code" cols="30" rows="10"></textarea>
</body>
<script>
    module.exports.getTextAreaText = async() => {
        return (document.getElementById("code").innerText)
    }
</script>
</html>