[html] Javascript intellisense in inline scripts from external references

This request is to provide intellisense capabilities for referenced script tags on inline javascript, for example:

<script src="myJs.js">  
<script>
   myJs.IntellisenseGoesHere
</script>

Ideally typings files are also supported for an even better experience

I could not find an open issue on this so per @aeschli 's comment on the last ticket related to this #15377 , I am creating a new feature request here

[prayaggandhi1080]

This is a much-desired feature. It will be great if VS code team can address this sooner rather than later. Will help a great deal in improving productivity.

[JohnnyFun]

It’d be cool even if vscode simply treated the inside of a <script> block as though it were a js file at the location where the html file is. Just to get auto-import support would be dreamy. Other features like refactor-extract-function, refactor-rename, etc would be great too.

If anyone knows of an extension that does something like that, let me know. Or you know how a simple extension could be thrown together that does that, any insight would be appreciated.

We’re using svelte, so we basically code in an html file and put logic in a script block, so this would be super nice to have. We currently just manually type our imports out, which gets a bit tedious.