Microsoft/TypeScript

`Array.prototype.at` docs use "code unit" instead of "item"

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#63,722 opened on Aug 5, 2026

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 (2 comments) (1 reaction) (0 assignees)TypeScript (13,395 forks)batch import
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Description

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Comment

The @param tag here in the docs for Array.prototype.at uses the term "code unit" instead of the more appropriate term "item" or "element". It was presumably copied from the docs for String.prototype.at here. I'd make a PR but there was an explicit recommendation not to do that for typos.

Contributor guide

Research direction
Locate the `Array.prototype.at` type definition in `src/lib/es2022.array.d.ts` and see how its `@param` comment describes the index. Compare it with `src/lib/es2022.string.d.ts` and note the difference in wording. Check the project's contribution guidelines to understand the policy on typo fix pull requests.
Tech stack
javascripttypescript
Domain
documentation
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
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Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Git
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
55