MIDIMessageEvent data is incorrectly typed #60546
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Bug
A bug in TypeScript
Domain: lib.d.ts
The issue relates to the different libraries shipped with TypeScript
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🔎 Search Terms
In #57027
MIDIMessageEvent.data
was changed fromUint8Array
toUint8Array | null
(see https://github.com/microsoft/TypeScript/pull/57027/files#diff-dc0eab937d15e62545da3ed7b4f40ad6b24f15dd88fbc6ceda2bfb4ed8356eb0L14670).According to https://developer.mozilla.org/en-US/docs/Web/API/MIDIMessageEvent/data data the value will always be an Uint8Array.
🕗 Version & Regression Information
This changed in #57027
⏯ Playground Link
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💻 Code
🙁 Actual behavior
'event.data' is possibly 'null'.ts(18047)
🙂 Expected behavior
No warning about data property possibly being null.
Additional information about the issue
No response
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