Neciu Dan
@neciudan.dev
Staff Software Engineer / Tech Co-Founder👨💻 @CareerOS / Passionate about React / Vue.js / UX / UI Components / CI / CD Integration
The GSAS conference in Barcelona is such a blast!
I got to meet one of my favorite authors, @vladikk.bsky.social
and watch his excellent talk!
Sharing the stage with these fantastic speakers is such an honor!
I got to meet one of my favorite authors, @vladikk.bsky.social
and watch his excellent talk!
Sharing the stage with these fantastic speakers is such an honor!
October 14, 2025 at 9:09 AM
The GSAS conference in Barcelona is such a blast!
I got to meet one of my favorite authors, @vladikk.bsky.social
and watch his excellent talk!
Sharing the stage with these fantastic speakers is such an honor!
I got to meet one of my favorite authors, @vladikk.bsky.social
and watch his excellent talk!
Sharing the stage with these fantastic speakers is such an honor!
October 3, 2025 at 3:24 PM
October 3, 2025 at 10:29 AM
@reactbarcelona.bsky.social meetup Summer Vibes
August 19, 2025 at 8:28 PM
@reactbarcelona.bsky.social meetup Summer Vibes
Check out full podcast episode on my profile
July 22, 2025 at 5:32 PM
Check out full podcast episode on my profile
Amazing time at @cityjsconf.bsky.social Athens!
May 30, 2025 at 4:15 PM
Amazing time at @cityjsconf.bsky.social Athens!
Saw this quote in Barcelona today. Love it
May 1, 2025 at 3:57 PM
Saw this quote in Barcelona today. Love it
Custom React hooks can KILL your performance if you’re not careful.
Here’s what happens when you add 2,000 event listeners by mistake…
Full video in comments 💡
Here’s what happens when you add 2,000 event listeners by mistake…
Full video in comments 💡
April 20, 2025 at 7:43 AM
Custom React hooks can KILL your performance if you’re not careful.
Here’s what happens when you add 2,000 event listeners by mistake…
Full video in comments 💡
Here’s what happens when you add 2,000 event listeners by mistake…
Full video in comments 💡
What to do in an interview after building a memoization function. We have 3 problems:
- JSON.stringify as a key generator
- Map as a cache
- not handling complex structure besides primitives
Full video in the comments
- JSON.stringify as a key generator
- Map as a cache
- not handling complex structure besides primitives
Full video in the comments
April 3, 2025 at 9:45 AM
What to do in an interview after building a memoization function. We have 3 problems:
- JSON.stringify as a key generator
- Map as a cache
- not handling complex structure besides primitives
Full video in the comments
- JSON.stringify as a key generator
- Map as a cache
- not handling complex structure besides primitives
Full video in the comments
Lets goooo! @nico.dev building KITT at #ReactParis
March 21, 2025 at 9:31 AM
Lets goooo! @nico.dev building KITT at #ReactParis
Time for #ReactParis! The best speaker lineup I’ve seen so far!
March 20, 2025 at 12:12 PM
Time for #ReactParis! The best speaker lineup I’ve seen so far!
Best burger in the world! Everytime i come to Amsterdam I never miss it @ Lombardos
March 15, 2025 at 11:33 AM
Best burger in the world! Everytime i come to Amsterdam I never miss it @ Lombardos
Final talk of the day with @sachagreif.com
March 14, 2025 at 4:48 PM
Final talk of the day with @sachagreif.com
Today is the big day!
Excited to speak on the biggest stage in Europe! 15:20 Amsterdam Theater!
Excited to speak on the biggest stage in Europe! 15:20 Amsterdam Theater!
March 14, 2025 at 7:27 AM
Today is the big day!
Excited to speak on the biggest stage in Europe! 15:20 Amsterdam Theater!
Excited to speak on the biggest stage in Europe! 15:20 Amsterdam Theater!
In exactly 1 week, on the 14th of March, I'm gonna take the stage at JSWORLD Conference to speak about Building CareerOS
Get tickets here: shop.weeztix.com/52e25a3b-3de...
Get tickets here: shop.weeztix.com/52e25a3b-3de...
March 7, 2025 at 10:47 AM
In exactly 1 week, on the 14th of March, I'm gonna take the stage at JSWORLD Conference to speak about Building CareerOS
Get tickets here: shop.weeztix.com/52e25a3b-3de...
Get tickets here: shop.weeztix.com/52e25a3b-3de...
What I understand from Single Responsibility Principle is not that each component should do one thing, but each component should have only one reason to change.
Image 1 - handles user profiles. But it has many reasons to change.
Image 2 - implements each reason for changing in its own component:
Image 1 - handles user profiles. But it has many reasons to change.
Image 2 - implements each reason for changing in its own component:
February 25, 2025 at 11:15 AM
What I understand from Single Responsibility Principle is not that each component should do one thing, but each component should have only one reason to change.
Image 1 - handles user profiles. But it has many reasons to change.
Image 2 - implements each reason for changing in its own component:
Image 1 - handles user profiles. But it has many reasons to change.
Image 2 - implements each reason for changing in its own component:
❌ 'Too many useState hooks = use useReducer'
✅ 'Complex state logic = use useReducer'
useState is fine for 5-6 independent states. useReducer shines when state updates affect each other.
Ensure state colocation and when state manipulation gets complicated switch to useReducer.
#React #WebDev
✅ 'Complex state logic = use useReducer'
useState is fine for 5-6 independent states. useReducer shines when state updates affect each other.
Ensure state colocation and when state manipulation gets complicated switch to useReducer.
#React #WebDev
February 20, 2025 at 12:00 PM
Ever wondered how useMemo works under the hood? 🤔
It's not magic - React stores your result & deps in memoizedState, then during updates, compares deps before deciding to recalculate.
But watch out! Sometimes the comparison itself is more expensive than just recalculating 🚀
#reactjs #webdev
It's not magic - React stores your result & deps in memoizedState, then during updates, compares deps before deciding to recalculate.
But watch out! Sometimes the comparison itself is more expensive than just recalculating 🚀
#reactjs #webdev
February 18, 2025 at 1:06 PM
Tomorrow is my first time hosting a meetup. I'm proud, nervous, and super excited. Wohooo!
I'm so glad for the React Community in Barcelona, who showed such a huge interest in the event, but I'm also super thankful for everybody helping out.
I'm so glad for the React Community in Barcelona, who showed such a huge interest in the event, but I'm also super thankful for everybody helping out.
February 17, 2025 at 9:45 AM
Tomorrow is my first time hosting a meetup. I'm proud, nervous, and super excited. Wohooo!
I'm so glad for the React Community in Barcelona, who showed such a huge interest in the event, but I'm also super thankful for everybody helping out.
I'm so glad for the React Community in Barcelona, who showed such a huge interest in the event, but I'm also super thankful for everybody helping out.
Reading "Unreasonable Hospitality" by @WillGuidara changed how I code.
Walt Disney said, "People can feel perfection," and it clicked - "good enough" isn't enough anymore.
In the age of AI, unreasonable attention to UX will stand out. One delighted user is worth more than a %conversion
Walt Disney said, "People can feel perfection," and it clicked - "good enough" isn't enough anymore.
In the age of AI, unreasonable attention to UX will stand out. One delighted user is worth more than a %conversion
February 16, 2025 at 11:36 AM
Reading "Unreasonable Hospitality" by @WillGuidara changed how I code.
Walt Disney said, "People can feel perfection," and it clicked - "good enough" isn't enough anymore.
In the age of AI, unreasonable attention to UX will stand out. One delighted user is worth more than a %conversion
Walt Disney said, "People can feel perfection," and it clicked - "good enough" isn't enough anymore.
In the age of AI, unreasonable attention to UX will stand out. One delighted user is worth more than a %conversion
🔄 Building a Simple Feature Toggle System with Firebase
Have you ever needed to roll out features gradually? I've got you covered! Here's a clean implementation of feature toggles using Firebase.
The system has:
1️⃣ A Firebase listener
2️⃣ A custom React hook
3️⃣ An example
Have you ever needed to roll out features gradually? I've got you covered! Here's a clean implementation of feature toggles using Firebase.
The system has:
1️⃣ A Firebase listener
2️⃣ A custom React hook
3️⃣ An example
February 13, 2025 at 10:00 AM
🔄 Building a Simple Feature Toggle System with Firebase
Have you ever needed to roll out features gradually? I've got you covered! Here's a clean implementation of feature toggles using Firebase.
The system has:
1️⃣ A Firebase listener
2️⃣ A custom React hook
3️⃣ An example
Have you ever needed to roll out features gradually? I've got you covered! Here's a clean implementation of feature toggles using Firebase.
The system has:
1️⃣ A Firebase listener
2️⃣ A custom React hook
3️⃣ An example