how to use visual studio code for javascript code example

Example 1: vs code enable "html" in "javascript"

"emmet.includeLanguages": {
    "javascript": "javascriptreact",
    "vue-html": "html",
    "razor": "html",
    "plaintext": "pug"
}

Example 2: how to run javascript in visual studio code

// install live server and then right click on your index.html and the keep the browser ready