# es/no-weakrefs
disallow the
WeakRefandFinalizationRegistryclass
- ✅ The following configurations enable this rule:
plugin:es/no-new-in-esnext
This rule reports ES2021 WeakRefs (opens new window) as errors. This proposal includes the following two:
WeakRefclassFinalizationRegistryclass
# Examples
⛔ Examples of incorrect code for this rule:
/*eslint es/no-weakrefs: error */
let ref = new WeakRef()
let finalizationGroup = new FinalizationRegistry(() => {})