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f / jev-leftpad

git clone https://github.com/f/jev-leftpad.git

Left-pad strings with TypeSafe AI's Jev. For reasons.

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Star history (as recorded here)

2026-10-20 · 84 ★ 2026-10-22 · 84 ★
LanguageJavaScript
LicenseMIT
Created2026-09-21 (1mo ago)
Last push1d ago
Watchers0
OwnerUser

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README excerpt
# jev-leftpad
Left pad a value with Jev.
Could this be one line with `padStart()`? Yes. Does it need a model call? No.
Anyway:
 [code] 
 [code] 
Set `TYPESAFE_API_KEY` before using it. `jev-leftpad` uses `jev-latest` through
TypeSafe's native `@typesafe-ai/sdk`.
It requires Node.js 20 or newer.
## API
 [code] 
`targetLength` must be a non-negative safe integer.
Jev gets one Choice with criteria named `space_0`, `space_1`, `space_2`, and so
on, written directly up to `space_10`. For the example above, it should choose
`space_5`. JavaScript reads the number, creates five spaces, and puts the value
after them.
This means the package can add between 0 and 10 spaces. If more than 10 spaces
are needed, Jev has no correct option. Which feels appropriate for this project.
There is one TypeSafe API request per call and retries are disabled. The request
can fail, Jev can choose the wrong option, and it costs more than `padStart()`.
Please don't use this in production. Or anything important.
## Development
 [code] 
The tests mock Jev. They don't need an API key and don't spend any TypeSafe
credits.
## License
MIT