JSMonk/hegel

Relational operations should inferred for string as well

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#333 opened on Apr 17, 2021

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help wanted

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Description

function le(a, b) {
    return a <= b
}

Actual: a and b infer as $StrictUnion<bigint | number>

Expected a and b infer as $StrictUnion<bigint | number | string>

Contributor guide

Research direction
Investigate the type inference logic for relational operators to include string in the union type. The issue is in the function parameter inference for <= operator.
Tech stack
typescript
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
TypeScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65