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Unexpected symbol "?" on Safari 12.1 #23

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hyoretsu opened this issue Jul 13, 2023 · 1 comment · Fixed by #24
Closed

Unexpected symbol "?" on Safari 12.1 #23

hyoretsu opened this issue Jul 13, 2023 · 1 comment · Fixed by #24

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@hyoretsu
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hyoretsu commented Jul 13, 2023 •
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It throws an error on Safari 12.1, in both development and production. I also have a React lib that when transpiled used the ||= operator, which turns out was only supported in Safari 14.

It's probably the nullish coalescing you're using that isn't being polyfilled by tsup, since it's only supported by Safari 13.4 onwards.
@hyoretsu hyoretsu mentioned this issue Jul 13, 2023
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@hyoretsu
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Using ESNext as target, specially in a lib, isn't good. It can use features that very few browsers support.

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Target ES6 when building, to support older browsers hyoretsu/nextjs-toploader
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