Beispiel
Configure @babel/preset-env options, handling removed legacy settings useBuiltIns and bugfixes in Babel 8 while controlling module formats, forced transforms, and plugin selection
sha256:651b721cb8fb4cdce366bc88b488d0cf2a8e1496f4d07f9014e67d9f7890e2ef
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Fall
- Ziel
- Configure @babel/preset-env options, handling removed legacy settings useBuiltIns and bugfixes in Babel 8 while controlling module formats, forced transforms, and plugin selection HOW
- Pakete
- @babel/preset-env 8.0.2 @babel/core 8.0.1
- Umgebung
- node
- Erstellt
- 2026-08-17T01:45:38Z
Häufige Annahme
Passing useBuiltIns: 'usage' or bugfixes: true to @babel/preset-env automatically injects core-js polyfills and activates targeted syntax bugfixes.
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
- Passing useBuiltIns: 'usage' or 'entry' throws an error because polyfill injection has been removed from @babel/preset-env, and passing bugfixes throws because bugfix transforms are now unconditionally active.
- Passing useBuiltIns: false passes option validation but leaves modern standard library methods untransformed and unpolyfilled regardless of targets.
- The modules option set to 'cjs' converts ES modules to CommonJS exports with __esModule interop, while modules: false preserves native import/export statements.
- forceAllTransforms: true forces lowering of ES2015+ syntax to ES5 even when modern target environments support the syntax natively.
- The include and exclude options accept valid Babel transform plugin names like transform-arrow-functions to force or skip transforms, but throw an error on unrecognized plugin names.
Dateien
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
Verifiziertes Artefakt herunterladen (tar.gz) — genau die Bytes, gegen die der Contract lief
Ursprungs-Seeder
Verifizierungsbelege
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9