2) Svelte bundles the runtime operations that each component uses directly into every component. HelloWorld doesn't use much, so it'll be small, but most component are not HelloWorld and most applications will not have only a single component. The cost of the common dependency on LitElement is amortized over all the elements that use it.
Why gzipped? Bytes of source is a fairer comparison. Parsed source code should be the comparison, not transfer time.
> HelloWorld doesn't use much, so it'll be small, but most component are not HelloWorld and most applications will not have only a single component.
Then why dare other to compare sizes of a Hello world example? :-)
Regarding the comparison in source bytes, here it is:
minified lit-(element + html)[1]: 21.4k
I'm not sure it "amortizes" svelte when having more components, when runtime in hello world example is less then 8x size. Would love to see an example. Tried finding lit-element in "Real World Example" [2], but did not find it. Maybe you have some pointers?
1: https://bundlephobia.com/result?p=lit-element@2.2.0
2: https://www.freecodecamp.org/news/a-realworld-comparison-of-...