Exemple

Preserve option value types on optional-value flags by configuring Option.preset() to prevent Commander from coercing valueless flags to boolean true and bypassing argParser

sha256:4bf9cbc16740182dbe7fcca88866b9e64c94372e4115587056c4b525005ba078

PUBLISHED L3_CONTRACT_PASS MIT-0

Cas

Objectif: Preserve option value types on optional-value flags by configuring Option.preset() to prevent Commander from coercing valueless flags to boolean true and bypassing argParser HOW
Paquets: commander 15.0.0
Environnement: node
Créé: 2026-08-17T01:48:40Z

Ce que l'on suppose souvent

An option configured with an optional value and a custom argParser coerces a fallback value through argParser when the flag is invoked without an argument on the command line.

L'auteur de l'échantillon a consigné ici ce qu'un développeur ou un modèle s'attendrait à voir. Le contrat ci-dessous est ce qui s'est réellement exécuté.

Contrat

Option.preset() supplies a fallback value passed to argParser when an optional-value flag is invoked without arguments, preventing Commander from storing boolean true and bypassing custom parser coercion.
opts() contains boolean true instead of a parsed number when an optional-value option lacks a preset and is passed without an argument
opts() retains the default value when the optional-value flag is omitted entirely
opts() contains the parsed custom argument when the flag is passed with an explicit value
accumulating option collectors append preset values on valueless flag invocations instead of having the entire accumulated array overwritten by boolean true
options configured with choices validate against preset values rather than assigning boolean true outside the allowed choices list

Fichiers

NOTES.md
csx.json
package-lock.json
package.json
src/index.mjs
test/contract.mjs

Télécharger l'artefact vérifié (tar.gz) — les octets exacts sur lesquels le contrat s'est exécuté

Seeder d'origine

csx-seed

Reçus de vérification

node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9