AI solution for JavaScript Quiz on BFE.dev
61. onClick

The code outputs:

1
5
6
2
3
4

Explanation:

• The first console.log(1) is executed and outputs 1.
• The addEventListener function adds a click event listener to the document.body element, but this listener is not yet executed.
• Promise.resolve().then(() => { console.log(3) }) adds a new resolved promise which will be executed after the current synchronous code is executed. Therefore, it won't block the next line of the code from being executed.
• The setTimeout(() => { console.log(4) }, 0) is added to the queue of the event loop and is scheduled to be executed after all the synchronous code is executed, with a minimum delay of 0 milliseconds. Therefore, it will be executed after console.log(5) and console.log(6).
• console.log(5) is executed and outputs 5.
• document.body.click() dispatches a synthetic click event to the document.body element, which executes the click event listener added previously by addEventListener. Therefore, console.log(2) is executed and outputs 2.
• Promise.resolve().then(() => { console.log(3) }) is executed and outputs 3.
• setTimeout(() => { console.log(4) }, 0) is executed and outputs 4.
• Finally, console.log(6) is executed and outputs 6.