🧵 I stopped building my e-commerce UI with static HTML… and rebuilt...
Jacey || Frontend Dev 👨🏽💻@jacey_muna
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May 19, 2026
~2 min read
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🧵 I stopped building my e-commerce UI with static HTML… and rebuilt it using JavaScript-driven rendering.
It slowed everything down but the learning payoff has been massive.
Here’s what changed 👇
It slowed everything down but the learning payoff has been massive.
Here’s what changed 👇
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1️⃣ Initially, I built everything the “simple” way:
Static HTML for product info, images, cart, and layout.
It was fast.
It was clean.
It worked.
I could’ve finished the project quickly.
Static HTML for product info, images, cart, and layout.
It was fast.
It was clean.
It worked.
I could’ve finished the project quickly.
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2️⃣ Then I made a decision:
Instead of hard-coded UI, I started rendering everything with JavaScript.
No more static content.
Everything became data-driven.
Product info → JS
Gallery → JS
Cart → JS
UI state → JS
Instead of hard-coded UI, I started rendering everything with JavaScript.
No more static content.
Everything became data-driven.
Product info → JS
Gallery → JS
Cart → JS
UI state → JS
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3️⃣ I introduced a real data model:
- product object (name, price, images, thumbnails)
- state object (current image, quantity, cart)
Now the UI was no longer “written in HTML”…
It was “generated from state”.
- product object (name, price, images, thumbnails)
- state object (current image, quantity, cart)
Now the UI was no longer “written in HTML”…
It was “generated from state”.
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4️⃣ I also grouped all DOM references into a single structure instead of scattered querySelectors everywhere.
Cleaner. More controlled. More scalable.
Cleaner. More controlled. More scalable.
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5️⃣ Then came the shift in mindset:
I stopped thinking:
"Which element do I update?"
And started thinking:
"What does the state look like right now?"
That's a completely different way of building UIs.
I stopped thinking:
"Which element do I update?"
And started thinking:
"What does the state look like right now?"
That's a completely different way of building UIs.
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6️⃣ I built render functions like:
- renderProductInfo()
- renderThumbnails()
- renderCart()
+ updateQuantityDisplay()
Each function responsible for syncing UI with state.
Everything became explicit and intentional.
- renderProductInfo()
- renderThumbnails()
- renderCart()
+ updateQuantityDisplay()
Each function responsible for syncing UI with state.
Everything became explicit and intentional.
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7️⃣ The downside?
Speed dropped.
A LOT.
Because now I wasn't just building UI…
I was designing how UI behaves.
Every feature required:
state → update → render → sync → test
Speed dropped.
A LOT.
Because now I wasn't just building UI…
I was designing how UI behaves.
Every feature required:
state → update → render → sync → test
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8️⃣ But here's what I realized:
Static HTML teaches structure.
JavaScript rendering teaches architecture.
I wasn't just building a page anymore.
I was building a system.
Static HTML teaches structure.
JavaScript rendering teaches architecture.
I wasn't just building a page anymore.
I was building a system.
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9️⃣ The biggest win so far:
I accidentally started thinking like React.
🔹state-driven UI
🔹render functions
🔹DOM as output, not source of truth
🔹components emerging naturally
I didn't plan that but it's happening.
I accidentally started thinking like React.
🔹state-driven UI
🔹render functions
🔹DOM as output, not source of truth
🔹components emerging naturally
I didn't plan that but it's happening.
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🔟 Final thought:
This shift slowed me down, yes.
But it also changed how I see frontend development entirely.
I'm no longer just placing elements on a page…
I'm designing how UI reacts to state.
This shift slowed me down, yes.
But it also changed how I see frontend development entirely.
I'm no longer just placing elements on a page…
I'm designing how UI reacts to state.
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Once this project ships, I'll rebuild it in React - not to "learn React", but to see what the framework abstracts away from what I built manually.
That's where the real insight will come from. 💡
That's where the real insight will come from. 💡
