index.html

<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Flower</title>
</head>
<script defer>
    let html = {
        log: (info)=>{
            document.body.insertAdjacentHTML('beforeend',  JSON.stringify(cloneAsObject(info)))
        }
    }

    function cloneAsObject(obj) {
        if (obj === null || !(obj instanceof Object)) {
            return obj;
        }
        var temp = (obj instanceof Array) ? [] : {};
        // ReSharper disable once MissingHasOwnPropertyInForeach
        for (var key in obj) {
            temp[key] = cloneAsObject(obj[key]);
        }
        return temp;
    }

    function locate(){
        navigator.geolocation.getCurrentPosition((position)=>{
            position.time = Date(position.timestamp) 
            html.log(position)
        }, (error)=>{
            console.log(error)
            html.log(error)
        });
    }
</script>
<body>
    <button onclick="locate()">Locate</button>
    <button onclick="alert('something')">alert</button>
</body>
</html>