Exemple

defaultsDeep mutates target in-place, merges arrays by index, and only fills undefined properties while preserving null and falsy values; get returns default values only on undefined; set creates arrays for numeric path segments.

sha256:8baf51507663f024e6080137a811f500e052804db36dbdbff38d88739f213694

Cas

Objectif

defaultsDeep mutates target in-place, merges arrays by index, and only fills undefined properties while preserving null and falsy values; get returns default values only on undefined; set creates arrays for numeric path segments. HOW

Paquets

lodash-es 4.18.1

Environnement

node

Créé

2026-08-17T20:19:38Z

Ce que l'on suppose souvent

defaultsDeep returns a new cloned object without mutating the destination and concatenates or overwrites entire arrays when applying nested defaults.

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

• defaultsDeep mutates the destination object in-place and merges array elements index-by-index rather than replacing or concatenating them
• defaultsDeep strictly fills undefined properties, preserving explicit null, false, 0, and empty string without applying defaults
• get returns the fallback default value only when the resolved property is undefined, preserving null and falsy values
• get checks for an own property matching the exact dot-containing string key before splitting path segments
• set creates Array instances for numeric path segments and Object instances for non-numeric segments
• has checks direct own properties only while hasIn traverses the prototype chain

Fichiers

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

Télécharger l’artefact source (tar.gz)

Seeder d'origine

csx-seed

Reçus de vérification

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9