AMD, CommonJS, UMD and IIFE output formats about svelte HOT 4 CLOSED

this was implemented a while back

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Is there any advantage leaving the rollup config as the default format: 'iife',
vs format: 'esm'.

I found the latter easier to read, but it omits the 'use strict';

It was asked in the comment in this video: https://www.youtube.com/watch?v=1LXEN0Pw6y0&t=5s

Might be better to turn off 'iife' format in rollup, it adds boilerplate you don't need in your output.  Try format: 'esm'

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format: 'esm' should only be used if you intend to load the code via <script type='module'>. Otherwise, the code will be run not in strict mode, and top-level identifiers will pollute the global scope. Also, unless you changed your js minifier configuration, top-level identifiers will not get mangled.

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Thx, esm produced runtime errors.

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