Getter function

[ghost]

Hi,
I began the lessons today, and Patrick mentionned te "getter function" term but i'm not sure what does this exactly mean, can someone explain me please ?
Thaxnx :)

[gonzales17]

A function that just returns a value, rather than updating a value (which would be a "setter function"). An example in Solidity might look like:

contract SomeContract {
   uint256 someValue;

   // "getter" function
   function getSomeValue() public view returns(uint256) {
      return someValue;
   }

  // "setter" function
  function setSomeValue(uint256 _val) public {
     someValue = _val;
  }
}

[ghost]

I got It, Thank You !

[alymurtazamemon]

@Alex200027fr

A getter is a function that returns a value. For all public variables, solidity creates this getter function internally so you can call that variable and get its current value.

We can also create the getter function for private and internal variables but we need to define ourselves. Like this

function functionName () public view returns(<return-type-here>) {
    return //anything you can return here.
}

[ghost]

That was clear, thank you !