Premium Only Content

JavaScript Event Loop: How it Works and Why it Matters
In this illustration:
The script starts with the message 'Start of the script'.
The setTimeout function is used to create an asynchronous operation. The callback inside setTimeout is pushed to the event queue after a delay of 0 milliseconds (in practice, it might not be exactly 0 due to how the browser/runtime handles it).
The script continues to execute, printing 'End of the script'.
Now, the event loop takes the callback from the event queue and executes it, printing 'Inside setTimeout callback'.
Additionally, the script includes a Promise example to illustrate another asynchronous operation. The Promise constructor is used to create a promise that resolves after a simulated delay of 2000 milliseconds. The then method is then used to handle the resolved value.
Understanding the event loop helps in dealing with asynchronous operations and ensures that code behaves as expected in various scenarios.
-
18:09
Forrest Galante
7 hours agoI Survived 24 Hours In The World's Deadliest Jungle
8.82K3 -
25:31
MattMorseTV
12 hours ago $18.33 earned🔴We just got THE MOTIVE.🔴
21.6K123 -
15:49
Nikko Ortiz
16 hours agoI Have A Gun
8.43K10 -
15:51
GritsGG
13 hours agoWinning a Warzone Match From a Tree! #1 Player's POV!
3.35K1 -
2:31:01
The Connect: With Johnny Mitchell
1 day ago $34.65 earned"It's About To Get Worse"- CIA Agent Andrew Bustamante Explains Why It's Time To Leave America
37.7K71 -
16:21
The Pascal Show
1 day ago $1.20 earned'THE FEDS MADE THIS UP!' Candace Owens Drops BOMBSHELL Pushing Back On Details In Charlie Kirk Case
3.53K5 -
LIVE
Lofi Girl
2 years agoSynthwave Radio 🌌 - beats to chill/game to
259 watching -
25:39
DeVory Darkins
12 hours ago $20.02 earnedMass shooting erupts in Michigan as bombshell study shows left wing political violence skyrocketed
34.7K107 -
5:55:33
MattMorseTV
10 hours ago $123.95 earned🔴Portland ANTIFA vs. ICE.🔴
161K323 -
3:13:00
Badlands Media
1 day agoThe Narrative Ep. 40: Acceleratia.
70.9K26