[Ethereum] Returns (bool) check in function


I've seen many functions using a returns (bool). What does it do? What can it be used for?

function transferFrom(address from, address to, uint256 value) public returns (bool);

Best Answer

It returns a boolean value, ie true or false.

Assuming you are reading from a token spec, that transferFrom function most likely should return true if the transfer is made successfully, and false if it fails.

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