Event Loop

Understand the event loop

AdvancedTopic: Advanced JS
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JavaScript Event Loop Program

This program helps you to learn the fundamental structure and syntax of JavaScript programming.

Try This Code
console.log('1');
setTimeout(() => console.log('2'), 0);
Promise.resolve().then(() => console.log('3'));
console.log('4');
Output
1
4
3
2

Understanding Event Loop

Event Loop manages asynchronous execution.

Note: To write and run JavaScript programs, you need to set up the local environment on your computer. Refer to the complete article Setting up JavaScript Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your JavaScript programs.

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