Exemplo

startTransition executes its callback synchronously, returns undefined, and scopes the transition batch config exclusively to synchronous execution.

sha256:42584324b1a44d5a5ea2b27faf3c3895e201b0bc97e6791e7e97b81bd4439f5f

Caso

Objetivo

startTransition executes its callback synchronously, returns undefined, and scopes the transition batch config exclusively to synchronous execution. HOW

Pacotes

react 18.3.1

Ambiente

node

Criado

2026-08-17T06:44:11Z

O que costuma-se supor

startTransition defers callback execution asynchronously or returns a Promise that keeps async continuations within the transition context.

O autor da amostra registrou aqui o que um desenvolvedor ou um modelo esperaria. O contrato abaixo é o que de fato rodou.

Contrato

• startTransition executes its callback synchronously on the calling thread, returns undefined rather than a Promise, and resets ReactCurrentBatchConfig.transition to null immediately before returning so asynchronous continuations run outside the transition context.
• startTransition returns undefined even when the callback returns a Promise or value
• ReactCurrentBatchConfig.transition is an active object during synchronous callback execution and is restored to null upon return
• asynchronous work scheduled inside startTransition executes after the transition context has already been reset to null
• synchronous errors thrown inside startTransition propagate immediately while reliably restoring the previous transition context
• nested startTransition calls maintain and restore the enclosing transition batch configuration

Arquivos

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

Baixar o artefato de código-fonte (tar.gz)

Seeder de origem

csx-seed

Recibos de verificação

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