Ensure proper async/await handling and consider concurrent execution patterns to prevent race conditions and improve performance. When working with asynchronous operations, always use await for promises and avoid mixing promise chains with async/await syntax. Additionally, identify opportunities to run independent operations concurrently rather than...
Ensure proper async/await handling and consider concurrent execution patterns to prevent race conditions and improve performance. When working with asynchronous operations, always use await for promises and avoid mixing promise chains with async/await syntax. Additionally, identify opportunities to run independent operations concurrently rather than sequentially.
Common issues to watch for:
Example of problematic code:
private static loadWebSocket() {
try {
return require('isows').WebSocket;
} catch {
try {
return import('isows').then(m => m.WebSocket); // Missing await, can cause race condition
} catch {
// fallback
}
}
}
Better approach:
private static async loadWebSocket() {
try {
return require('isows').WebSocket;
} catch {
try {
const module = await import('isows'); // Proper await handling
return module.WebSocket;
} catch {
// fallback
}
}
}
For independent operations, prefer concurrent execution:
// Instead of sequential
const sitemapLinks1 = await this.tryFetchSitemapLinks(url, "/sitemap.xml");
const sitemapLinks2 = await this.tryFetchSitemapLinks(url, "/sitemap_index.xml");
// Use concurrent execution
const [sitemapLinks1, sitemapLinks2] = await Promise.all([
this.tryFetchSitemapLinks(url, "/sitemap.xml"),
this.tryFetchSitemapLinks(url, "/sitemap_index.xml")
]);
Enter the URL of a public GitHub repository