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So I have just started learning LWC, and upon making a new component (helloWorld) on trailhead, when I try and upload to the org, I get the following error:

force-app/main/default/lwc/helloWorld/helloWorld.js  LWC1503: Parsing error: This experimental syntax requires enabling one of the following parser plugin(s): "jsx", "flow", "typescript". (1:0) (1:0)

I started this for the second time, as I got extremely confused with all the dev orgs, scratch orgs and the like. I deleted all and started fresh.

My linting has not changed whatsoever, and it used to work (Natural story of dev work).

I am not entirely sure where I would change this to fix the error, as all online issues are for web dev related stuff (I can't see how to implement the fixes with the SFDX structure.

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Please excuse me for being an idiot.

I pasted my .html markup in the .js file!

Sorry for wasting everyone's time who had a look at this.

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    Don't worry about it; we've all done something "silly" like this before. Maybe you'll end up helping someone else that did the same thing.
    – sfdcfox
    Jan 22 at 20:31

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