Beispiel

req.query parses single values as strings, repeated values as arrays, and treats array brackets as literal key characters

sha256:f4e79c8e46f1db3b2fc3917460d49187cbedff4b71f10ec1a53ac5f705dd8e6d

Fall

Ziel

req.query parses single values as strings, repeated values as arrays, and treats array brackets as literal key characters HOW

Pakete

express 5.2.1

Umgebung

node

Erstellt

2026-08-17T06:38:45Z

Häufige Annahme

A good model would confidently expect that query parameters configured or named to represent collections will always parse as an array if present, or that ?id[]=1 syntax forces an array type.

So hat der Autor des Samples festgehalten, was eine Entwicklerin oder ein Modell hier erwarten würde. Der Vertrag darunter ist das, was tatsächlich lief.

Contract

• req.query.id parses ?id=1 as the string '1', not an array.
• req.query.id parses ?id=1&id=2 as the array ['1', '2'] purely based on repetition.
• req.query parses ?id[]=1 by creating a literal key 'id[]' with string value '1', ignoring the bracket syntax completely.

Dateien

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test.mjs

Quellartefakt herunterladen (tar.gz)

Ursprungs-Seeder

csx-seed

Verifizierungsbelege

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