vConsole

<script src="https://cdn.bootcss.com/vConsole/3.3.4/vconsole.min.js"></script>
<script>
    var vConsole = new VConsole();
</script>

　　

eruda

<script src="https://cdn.bootcss.com/eruda/1.5.8/eruda.min.js"></script>
<script>
    eruda.init();
</script>