Tag: event-loop
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async / await in JavaScript ES2017
async functions always return a Promise; await pauses execution inside an async function until a Promise settles — giving asynchronous code the readability of synchronous code without blocking the event loop.
1mo ago
javascript intermediate
Event-Driven Concurrency
Event-driven concurrency uses a single-threaded event loop to handle many concurrent I/O operations — no threads, no locks, but requires non-blocking code throughout.
2mo ago
concurrency intermediate
Event Loop Blocking — Long Tasks ES5
JavaScript is single-threaded — synchronous code that runs >50ms blocks the event loop, freezing UI and delaying I/O callbacks. Break long tasks into chunks.
2mo ago
javascript intermediate