how to test app on PC before on smartphone

[pedefe]

Hello,
I succeeds to build my first app and to run it on my smartphone.
Then, because I do code errors, I wish to save time by testing a lot of functions between html page and nodejs core on my Windows PC.
So I run the nodejs core with node main.js, and then I try to run the main web page.
If I launch file:///C:/aDevAndroidJs/ajsTest/views/index.html, page is displayed, and dials with nodejs app. But some object like leaflet can not be used.
Is there a way to launch /views/index.html in the browser with http protocol, something like "https://127.0.0.1:8080/views/index.html" ?
Best regards

[WebMechanic]

if you use some sort of JS framework that should already come with a built is solution to "serve" the files.
Have a look at the "scripts" in package.json -- provided you use a frontend framework like Vue