Hacktoberfest 2026: le issue che i maintainer hanno segnato per ottobre, aperte e adatte ai principianti. Sfoglia le issue Hacktoberfest

Typescript error

Aperta
#17 0 commenti 0 reazioni 0 assegnatari Vedi su GitHub

Nessuno ha ancora preso questa issue.

Valutazione

Difficoltà
3/5
Tempo stimato
1-2 giorni
Idoneità per principianti
30/100
Tipo di issue
Bug
Chiarezza
Da chiarire
Stato di attività
Ferma
Stack tecnologico
typescript
Ambito
build-system

Direzione di ricerca

Riproducete il fallimento della compilazione di TypeScript 5.6.2 e ispezionate le dichiarazioni segnalate in node_modules/lru-cache/dist/commonjs/index.d.ts, in particolare entries, keys, values, Symbol.iterator e forEach. Il problema è risolto quando il progetto viene compilato senza questi errori TS2416.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

When compiling with Typescript 5.6.2 I get the following error:

output
node_modules/lru-cache/dist/commonjs/index.d.ts:973:5 - error TS2416: Property 'entries' in type 'LRUCache<K, V, FC>' is not assignable to the same property in base type 'Map<K, V>'.
  Type '() => Generator<[K, V], void, unknown>' is not assignable to type '() => MapIterator<[K, V]>'.
    Call signature return types 'Generator<[K, V], void, unknown>' and 'MapIterator<[K, V]>' are incompatible.
      The types returned by 'next(...)' are incompatible between these types.
        Type 'IteratorResult<[K, V], void>' is not assignable to type 'IteratorResult<[K, V], undefined>'.
          Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorResult<[K, V], undefined>'.
            Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorReturnResult<undefined>'.
              Type 'void' is not assignable to type 'undefined'.

973     entries(): Generator<[K, V], void, unknown>;
        ~~~~~~~

node_modules/lru-cache/dist/commonjs/index.d.ts:985:5 - error TS2416: Property 'keys' in type 'LRUCache<K, V, FC>' is not assignable to the same property in base type 'Map<K, V>'.
  Type '() => Generator<K, void, unknown>' is not assignable to type '() => MapIterator<K>'.
    Call signature return types 'Generator<K, void, unknown>' and 'MapIterator<K>' are incompatible.
      The types returned by 'next(...)' are incompatible between these types.
        Type 'IteratorResult<K, void>' is not assignable to type 'IteratorResult<K, undefined>'.
          Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorResult<K, undefined>'.
            Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorReturnResult<undefined>'.
              Type 'void' is not assignable to type 'undefined'.

985     keys(): Generator<K, void, unknown>;
        ~~~~

node_modules/lru-cache/dist/commonjs/index.d.ts:997:5 - error TS2416: Property 'values' in type 'LRUCache<K, V, FC>' is not assignable to the same property in base type 'Map<K, V>'.
  Type '() => Generator<V, void, unknown>' is not assignable to type '() => MapIterator<V>'.
    Call signature return types 'Generator<V, void, unknown>' and 'MapIterator<V>' are incompatible.
      The types returned by 'next(...)' are incompatible between these types.
        Type 'IteratorResult<V, void>' is not assignable to type 'IteratorResult<V, undefined>'.
          Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorResult<V, undefined>'.
            Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorReturnResult<undefined>'.
              Type 'void' is not assignable to type 'undefined'.

997     values(): Generator<V, void, unknown>;
        ~~~~~~

node_modules/lru-cache/dist/commonjs/index.d.ts:1009:5 - error TS2416: Property '[Symbol.iterator]' in type 'LRUCache<K, V, FC>' is not assignable to the same property in base type 'Map<K, V>'.
  Type '() => Generator<[K, V], void, unknown>' is not assignable to type '() => MapIterator<[K, V]>'.
    Call signature return types 'Generator<[K, V], void, unknown>' and 'MapIterator<[K, V]>' are incompatible.
      The types returned by 'next(...)' are incompatible between these types.
        Type 'IteratorResult<[K, V], void>' is not assignable to type 'IteratorResult<[K, V], undefined>'.
          Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorResult<[K, V], undefined>'.
            Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorReturnResult<undefined>'.
              Type 'void' is not assignable to type 'undefined'.

1009     [Symbol.iterator](): Generator<[K, V], void, unknown>;
         ~~~~~~~~~~~~~~~~~

node_modules/lru-cache/dist/commonjs/index.d.ts:1032:5 - error TS2416: Property 'forEach' in type 'LRUCache<K, V, FC>' is not assignable to the same property in base type 'Map<K, V>'.
  Type '(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => any, thisp?: any) => void' is not assignable to type '(callbackfn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any) => void'.
    Types of parameters 'fn' and 'callbackfn' are incompatible.
      Types of parameters 'map' and 'self' are incompatible.
        Type 'LRUCache<K, V, FC>' is not assignable to type 'Map<K, V>'.
          The types returned by 'entries().next(...)' are incompatible between these types.
            Type 'IteratorResult<[K, V], void>' is not assignable to type 'IteratorResult<[K, V], undefined>'.
              Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorResult<[K, V], undefined>'.
                Type 'IteratorReturnResult<void>' is not assignable to type 'IteratorReturnResult<undefined>'.
                  Type 'void' is not assignable to type 'undefined'.

1032     forEach(fn: (v: V, k: K, self: LRUCache<K, V, FC>) => any, thisp?: any): void;
         ~~~~~~~
Lingua principale
TypeScript
Stelle
10
Fork
3
Metriche di merge delle PR
Nessuna PR unita negli ultimi 30g

Preparare l'ambiente

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Issue simili

Altre issue su TypeScript

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.