When we have to annotate that function is payable in smart contract?

Question

I have used solidity smart contracts since 3 months ago, but I never used the decorator "payable".

Is it sometimes necessary to use a payable function?

score 1 · Answer 1 · answered May 18 '18 at 08:31

1

Payable is necessary if you want the method to be able to receive funds or a "value".

For example, if I create a crowdsale-contract the payable function will be handling the receiving of the funds.

answered May 18 '18 at 08:31

jasper

and what about if the method use a lot of gas ? isn't necessary to add payable decorator ? – maroodb May 18 '18 at 08:35
Nope, gas has nothing to do with the payable decoration. – jasper May 18 '18 at 08:37

1 Answers1