Abdussalam

Engineering || Programming || Crypto

[Abdussalam @mrabdoul_]

Hello! My name is Abdussalam.
I am an engineering student and tech enthusiast. Recently I decided to venture into web development. I'll be documenting my journey here.
Let us begin!!
#techtwitter #webdev

[Abdussalam @mrabdoul_]

What happens community is the forefront of crypto?

That's the idea behind bPay connecting, onboarding and BNB on-chain participation.

Check it out yourself.

CA: 0xb13003bf44de426dd2a3aae3df9c3400de0a7777

Code: BP-AAF03B10A682

https://t.co/UWsIdnp0ZR

#bPay #BSC

[Abdussalam @mrabdoul_]

Just applied for @fugabe 👀
Join my whitelist — get a higher chance!
https://t.co/PqMn9V1YXE

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[TimoTheArtist🎨 @ArtistTimo]

My Entry for the @lafuufu art contest
Family Selfie✨
#lafuufu

[TimoTheArtist🎨 @ArtistTimo]

GM X
So last week I was able to complete these amazing artworks 😇
It’s a new week now let’s see what we can do😊
LFG!💪🏽
@DejaVuPunks @perpltrade @monad_xyz @cocodourt

I’m open for commissions tho🙃

[Abdussalam @mrabdoul_]

That's all for today.
Tomorrow, what I will be building should interest you.
Follow along, let's learn this blockchain thing together.

[Abdussalam @mrabdoul_]

💪 I took it a step further and added:

function decrement() public {
require(count > 0, "Count must be greater than 0");
count -= 1;
emit CountChanged(count);
}

Now the counter can go down — but not below 0 ✅

[Abdussalam @mrabdoul_]

🔄 function reset()

This sets count back to 0.

Also emits the CountChanged event:

function reset() public {
count = 0;
emit CountChanged(count);
}

Clean and simple. Great for testing function logic.

[Abdussalam @mrabdoul_]

increment() function

➕ function increment()

When this is called, it adds 1 to count.

It then emits an event with the new value.

function increment() public {
count += 1;
emit CountChanged(count);
}

Anyone can call it, thanks to public.

[Abdussalam @mrabdoul_]

Event?

📣 event CountChanged(uint newCount);

This creates a custom event. Later in the code, we call

emit CountChanged(count);

Telling the blockchain (and frontend apps): “Hey, the count just changed!”

[Abdussalam @mrabdoul_]

Let’s break it down 👇

What's the state variable?

🔢 uint public count;

This is a state variable stored on the blockchain.
uint: unsigned integer (only positive numbers)
public: auto-creates a getter function. This keeps track of the count, even after the contract is deployed.

[Abdussalam @mrabdoul_]

Let’s break down the actual Counter smart contract I built 👇

It's simple but packs in key Solidity concepts: state variables, functions, events, and basic logic.

I built this on Remix IDE

https://t.co/0dZQAyeQQ4

[Abdussalam @mrabdoul_]

📢 Events = Blockchain shout-outs

You use emit to say “something just happened!”

emit ItemBought(msg.sender, 1);

This executes the event ItemBought.
By who? msg.sender.
How many? 1.
Frontends & explorers use these logs to show what your contract did.

[Abdussalam @mrabdoul_]

🧙 Modifiers = What a function can or can't do

view: can read blockchain data

pure: can’t read or write – just math/logic

payable: lets the function accept ETH

You must use payable if people send assets to your contract.

[Abdussalam @mrabdoul_]

🔒 Function Visibility

Let's us choose who’s allowed to use a function.

public: anyone.

private: only this contract.

internal: this contract + its children.

external: only outsiders.

[Abdussalam @mrabdoul_]

🧱 Data Types: Building blocks.

They represent what kind of info you're storing.

uint: whole numbers.

address: crypto wallet ID.

bool: true or false.

string: text.

mapping: like a dictionary (key → value).

struct: custom object with multiple fields.

[Abdussalam @mrabdoul_]

DAY TWO CHECK IN
The objective for today was a bit more technical: Understand Solidity syntax, structure, and build your first deployable smart contract.
Coming from a Javascript background, most of the syntax was easily relatable for me. So what smart contract did I build today?

[Abdussalam @mrabdoul_]

I built a counter contract. Though simple, it allowed me to practice with the syntax and use new keywords.

Before writing the contract, I studied these core concepts:

Data types

Function visibility

Modifiers

Events

[Abdussalam @mrabdoul_]

That's all for today.
Tomorrow, what I will be building should interest you.
Follow along, let's learn this blockchain thing together.

[Abdussalam @mrabdoul_]

DAY TWO CHECK IN
The objective for today was a bit more technical: Understand Solidity syntax, structure, and build your first deployable smart contract.
Coming from a Javascript background, most of the syntax was easily relatable for me. So what smart contract did I build today?

[Abdussalam @mrabdoul_]

DAY ONE CHECK
The objective for today was simple: Understand how Ethereum, the EVM, and smart contracts work at a conceptual level, and that's what I tried to do.

Follow me.🧵

[Abdussalam @mrabdoul_]

💪 I took it a step further and added:

function decrement() public {
require(count > 0, "Count must be greater than 0");
count -= 1;
emit CountChanged(count);
}

Now the counter can go down — but not below 0 ✅