Better TypeScript support

Description

parse([], [{ name:'foo', type: Boolean }, { name: 'bar', type: String, optionalValue: true }])

//=> { foo?: boolean, bar?: string | true }

Contributor guide

Tech stack

typescriptnodejs

Domain

cli

Issue type

feature

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.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

TypeScript advanced typestinyargs parse function

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

65

Research direction

Examine the type definition of the `parse` function in the source code (likely `src/index.ts`). The issue provides an example showing the desired return type inference from the options array. Use TypeScript's mapped types or variadic tuple types to map each option to its corresponding type. No existing PRs or comments are available.