microsoft / microsoft/TypeScript

Change type of `File` constructor parameter `fileBits` to `Iterable<BlobPart>`

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#57,520 1 comment 2 reactions 2 assignees View on GitHub

@RyanCavanaugh is already working on this.

Since Sep 19, 2026.

  • #64336 by @copilot-swe-agent — open
Bug Domain: lib.d.ts Help Wanted Needs Human Review
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Description

⚙ Compilation target

es2022

⚙ Library

es2022, dom

Missing / Incorrect Definition

type of the parameter fileBits of the File constructor.

Sample Code
new File((function * () { yield "a" })(), "name")
Documentation Link

https://developer.mozilla.org/en-US/docs/Web/API/File/File#filebits

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