Async/await and Promise optimization guidelines. Use when writing, reviewing, or refactoring asynchronous code to eliminate waterfalls and maximize parallelism. Triggers on tasks involving data fetching, loaders, actions, or Promise handling.
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When async operations have no interdependencies, execute them concurrently using Promise.all().
Incorrect (sequential execution, 3 round trips):
const user = await fetchUser();
const posts = await fetchPosts();
const comments = await fetchComments();Correct (parallel execution, 1 round trip):
const [user, posts, comments] = await Promise.all([
fetchUser(),
fetchPosts(),
fetchComments(),
]);Source: SKILL.md on GitHub
This skill is an educational resource containing best practice guidelines for optimizing asynchronous JavaScript and React code. No security risks, malicious code, or unauthorized operations were detected.
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Last checked against GitHub 2 months ago.