solidity – Understanding Arguments Inside Curly Brackets in Solidity

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Pls how do i interprete this argument in this curly brackets marked in red. I'm a beginner in solidity programming and I am have a hard time interpreting this arguments and what does the arguments mean.

Best Answer

I had seen other mint functions before. But this one is a bit unusual. However, as far as I can read this all three variables have a clear definition.

Address(0) -> Is null address, and the function is making sure you do not mint coins on null address, as any tokens minted there would be invalid/unusable by default.

Account -> Is a valid address to which you mint new tokens

Ammount -> Is literally the number of tokens you mint. For example, if the ammount=100, then you had just minted 100 of them. (For ERC20 tokens you might need to add 10*18 to that number, but that is another story)

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There's no meaning as far as Solidity is concerned.

Some programmers choose to use a leading underscore for all function parameters, just as a convention to indicate that they're function parameters.

They're also often used so as to avoid collisions, e.g.:

uint256 totalSupply;

constructor(uint256 _totalSupply) public {
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}

There, calling the parameter totalSupply would shadow the existing state variable totalSupply, so the leading underscore is used to avoid the naming collision.

Best Answer

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