Microtasks and Macrotasks in JavaScript

Understand microtasks and macrotasks

AdvancedAdvanced JSExample 12 of 12

microtasks-and-macrotasks.js

1console.log('1');
2setTimeout(() => console.log('2'), 0);
3queueMicrotask(() => console.log('3'));
4Promise.resolve().then(() => console.log('4'));
5console.log('5');

Output

What's going on

Microtasks execute before macrotasks.

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