solidity

[gnutan181]

hii, In solidity why we write returns(uint256)?
i mean that what is work of returns (uint256)?

[byte14]

We write returns (uint256) to indicate that you will be returning a variable of uint256 type in your function.
If you want to return a string then you will write returns (string memory) and if you don't want to return anything you wouldn't write returns keyword.

[gnutan181]

thank bro

[othaime-en]

@gnutan181 We use the keyword returns() whenever your function returns something. So if the function you have has a return statement inside it, you have to include the type of whatever you are returning in the returns section
So for example, in the function below, we use returns(uint256) because we are returning a uint256 value.

function someFunction() public returns(uint256) {
    uint256 someVar = 5;
    return someVar;
}

If you want to return multiple values, you can also do so

function someFunction() public returns(uint256, uint256) {
    uint256 someVar = 5;
    uint anotherVar = 10;
    return someVar, anotherVar;
}