programmers only 👇

@doma.inc

18.9K followers · usually 1.5K views a post

Views

8.7K

Likes

68

Comments

14

Shares

2

SoundTikTok sound · Endless Travel

Promoted product

Doma.softwarehttps://linktr.ee/Doma.software ↗

Why it worked

The video leverages a common pain point for programmers (loop closure bugs) and presents a clear, concise solution. The 'programmers only' hook and the challenge to 'spot the difference' create engagement and encourage sharing within the target audience.

Summary

The video presents a common JavaScript bug related to loop closures and then shows the corrected version. It highlights the difference between using 'var' and 'let' in a loop with setTimeout, demonstrating how 'let' correctly captures the loop variable's value in each iteration.

Structure

1Introduce the classic loop closure bug in JavaScript
2Show the buggy code using 'var'
3Explain the incorrect output (3, 3, 3)
4Show the fixed code using 'let'
5Explain the correct output (0, 1, 2)

Product placement

The video showcases a common JavaScript programming bug and its solution, implicitly promoting Doma.software as a resource for developers, likely through its educational content or tools.

Original caption

Only a real programmer can spot the difference 😁 #code #javascript #programming #softwareengineer #domatech

More from @doma.inc

On-screen text

programmers only 👇 1. The classic loop closure bug Javascript // Buggy for (var i = 0; i < 3; i++) { setTimeout(() => console.log(i), 100); } // Logs: 3, 3, 3 🤯 Javascript // Fixed for (let i = 0; i < 3; i++) { setTimeout(() => console.log(i), 100); } // Logs: 0, 1, 2 ✅ Only a real programmer can spot the difference 😉