2024-08-06 12:38:43 +02:00

716 B

JavaScript is single-threaded but it can still take advantage of asynchronous programming.

The Event Loop is a Javascript construct responsible for holding operations to be executed asynchronously with respect to the main flow of execution. Whenever we meet a portion of code that may not be possible to execute now, it is put in the Event Loop. Let's look at some examples:

setTimeout(() => console.log('test'), 1000);

`console.log('test')` will be put in the Event Loop.

2. ```javascript
const promise = new Promise(function (resolve, reject) {
console.log('test');
resolve();
}).then(() => {
console.log('test2');
});

console.log('test2') will be put in the Event Loop.