Javascript microtasks for beginners macro vs micro tasks

Published: 25 September 2024
on channel: CodeLines
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in javascript, tasks are divided into two main categories: macro tasks and micro tasks, which play a crucial role in the event loop and asynchronous programming. macro tasks include operations like settimeout and setinterval, which are queued in the macro task queue and executed in the order they are added. when the main execution stack is clear, the event loop processes these tasks.

micro tasks, on the other hand, include promises and operations like process.nexttick in node.js. they are queued in the micro task queue and have a higher priority than macro tasks. this means that after the main execution stack is empty, the event loop processes all micro tasks before moving on to the next macro task. understanding this distinction helps developers manage asynchronous code effectively, ensuring that promise resolutions and other micro tasks complete before any new macro tasks are executed, leading to more predictable behavior in applications.
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