microsoft / microsoft/tslib

Document helpers needed per target platform

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TypeScript
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Description

So, apparently we need these helpers (quite like polyfills) to target platforms, which don't have some of the newer features yet (like async/await). Ok.

However, if I target es2017, es2018 (or es2025 when it comes), tsc will produce code that doesn't need to rely on these helpers, and there's no need for this lib?

Would it make sense to document which helpers are required on which target, so I can judge if I need this library at all?

(Why external library? Why not just bundle this functionality into typescript, which already seems to have a copy of these helpers anyway - tslib is needed only to import the helpers instead of multiplying them now?)

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Research direction

Start by reviewing the tslib helper inventory and how tsc targets such as es2017 and es2018 affect emitted helpers, including async/await. Done means documenting which helpers are needed for each target and clarifying when importing tslib is necessary.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
documentation
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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