Safetransfer Vs transfer

Question

Does anyone know the difference between safeTransfer and transfer in ERC20?

People said that safeTransfer returns boolean, which is much safer than "transfer"?

I do not understand it well, When you use either the safeTransfer or transfer function to send tokens more than the tokens you have, the both function returns an error.

I feel like they seem same,

Would you please help me?

if possible, please give me a example code?

Answer 1

From OpenZepplain's forum.

SafeERC20 is not an ERC20 extension that you use to make your token safe (OpenZeppelin’s ERC20 is already safe). It’s a helper to make safe the interaction with someone else’s ERC20 token, in your contracts.

You can read the full post here.

Answer 2

There is no safeTransfer in ERC20. If you're talking about ERC721 then safeTransfer calls a function on the receiver that makes sure they're aware of the ERC721 standard and will know what to do with the token while transfer doesnt.