Founders

Learn about Solidity 💡⚡️
How functions work in Solidity:

1. **Definition**: Functions are defined using the `function` keyword, followed by the function name, parameters, and a return type if applicable. 
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2. **Visibility**: Functions can have visibility modifiers like `public`, `private`, `internal`, or `external`, determining who can call the function. The example above uses `public`, meaning it can be called from anywhere.
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3. **Implementation**: The block of code within curly braces `{}` contains the function's logic, and you can return values using the `return` statement if a return type is specified. For instance:
   ```solidity
   return a + b;
   ```
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Here's a complete example of a simple add function in a contract:

```solidity
pragma solidity ^0.8.0;

contract SimpleCalculator {
    function add(uint a, uint b) public pure returns (uint) {
        return a + b;
    }
}
```
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This contract allows you to add two numbers on the blockchain!