Ankit Sharma 🇮🇳 | Senior MERN

Senior MERN Stack Dev | React Specialist
Frontend architecture, system design & JS made simple
Sharing React/MERN patterns, DSA strategies & interview prep

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

I share senior-level React & MERN insights:
• Clean frontend architecture
• System design for real apps
• JS deep concepts
• DSA patterns & interview prep

If you're preparing for frontend/MERN roles, follow along — daily, no-fluff content.
#ReactJS #MERNStack #FrontendDev

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

@xzx_slipknot Jacques Kallis

[Akhilesh kumar @Akhilesh141296]

HVDC AAREY SITE“🏢 Large corporations celebrate their project completion 🎉📸 👷‍♂️ Meanwhile, small vendors who made it possible are still chasing their pending payments 💰⏳
Sadly, this is the ground reality in India 🇮🇳.” @hitachienergy @minmsme @Adani_Elec_Mum

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Prompt

[Suryansh Tiwari @Suryanshti777]

Everyone is using Claude
Only 1% are actually leveraging it

The difference isn’t access.
It’s the prompt.

I tested 1000+ prompts.
Refined them. Broke them. Rebuilt them.

That’s how I moved into that 1%.

Today I generate $2,000–$4,000/month
Just by giving Claude better instructions.

Most people blame the AI.
The real problem is vague prompts.

So I’m giving away my Top 21 Claude Mega Prompts — copy-paste version.

Universal.
Tested.
Built for real results.

If you know how to instruct AI properly, you gain unfair leverage.

How to get it:
• Follow (so I can DM you)
• Comment “prompt”
• Like + RT

Miss a step = no access

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

@Jindo_1307979 51,181

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

useEffect isn’t for everything.
Use it only when something should happen because state changed.

If you can do it during render, do it there.

#ReactJS #MERNStack

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Reliable UI comes from reliable data handling:
• graceful loading
• retry logic
• stale state strategy
• predictable errors

A resilient UI feels fast even in slow conditions.

#SystemDesign #FrontendDev

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Optional chaining prevents many crashes:

const city = user?.address?.city;

It’s not hiding errors—just handling unknown paths gracefully.

#JavaScript #WebDevelopment

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Re-renders aren’t always bad.
What matters is whether they are unnecessary.

Before optimizing, ask:
“Is this re-render expected?”

Understanding comes before optimization.

#ReactJS #Performance

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Small components aren’t about style—they reduce coupling.
When behavior changes, updates remain localized.
That’s how scaling feels manageable instead of stressful.

#ReactJS #SystemDesign

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Two Sum isn’t about brute force.
Use a map to track complements:
const map = new Map();
for (let i = 0; i < n.length; i++) {
const diff = t - n[i];
if (map.has(diff)) return [map.get(diff), i];
map.set(nums[i], i);
}
Efficiency starts with the right approach.
#javascript

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

@denicmarko Nextjs

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

React becomes clearer when state ownership is intentional.
Only the component that truly needs to control state should own it.
The rest should receive data, not manage it.

Ownership clarity improves every interaction.

#ReactJS #FrontendDev

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

A frontend grows well when responsibilities are clear:

• UI handles display
• components manage view logic
• hooks handle shared behavior
• services handle data + APIs

When each layer stays focused, scaling becomes much easier.

#ReactJS #SystemDesign #FrontendDev

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

When a DSA problem feels complex, check the constraints first.

If n ≤ 10⁵ → brute force is already wrong.
If time is tight → choose the right pattern.
If memory matters → avoid extra structures.

Constraints tell you the strategy.

#DSA #JavaScript #CodingInterview

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Many bugs come from wrong assumptions in JS.

Before coding, confirm:
• input type & shape
• sorted or unsorted?
• duplicates allowed?

Example check:
if (!Array.isArray(nums) || nums.length === 0) return [];
Clarity upfront saves hours later.

#JavaScript #DSA #WebDevelopment

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Often, the bug isn’t in the logic—it’s in the assumptions.

Before coding, confirm:
• input shape
• edge cases
• sorted or unsorted?
• duplicates allowed?

Clarity upfront avoids debugging later.

#JavaScript #DSA #WebDevelopment

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Frontends get hard to maintain when everything depends on everything else.

Clear boundaries help:
• local vs global state
• predictable data flow
• isolated components
• defined responsibilities

Small early decisions make scaling easier.

#SystemDesign #FrontendDev #ReactJS

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

React becomes much easier when you focus on the fundamentals:
• who owns the state
• why a component re-renders
• how data flows across the UI
• what each effect is responsible for
Once these are clear, React feels predictable—not confusing.

#ReactJS #FrontendDev #MERN

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Node apps rarely slow down because of Node itself.
The issues usually come from design choices.
• blocking operations
• inconsistent error handling
• repeated DB calls
• no batching or rate limits
A bit of architecture goes a long way.
#NodeJS #Backend #MERNStack

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Before coding, ask:
🔹 Sorted? → Two pointers / binary search 🔹 Frequency or lookup? → Hash map / set 🔹 Range/longest window? → Sliding window 🔹 Running state? → Prefix sum 🔹 Combination exploration? → Backtracking
Pattern > guessing.
#DSA #JavaScript #LeetCode

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

Most array problems don’t need brute force.
They need the right pattern.

Before coding, identify the shape of the problem.

Here’s a simple framework to pick the correct approach 👇
#DSA #JavaScript #CodingInterview

[Ankit Sharma 🇮🇳 | Senior MERN @CodesWithAnkit]

7️⃣ Is recursion necessary?
If the problem involves:
• choices • branching • combinations/permutations • exploring possibilities
Think:
➤ Backtracking ➤ Recursion
Brute force becomes structured.