Approve Pattern
Based on ERC20 token learn the rules for transfering tokens, including the approval pattern when a user wishes to instruct a vendor contract to sell a proportion of their tokens.
Based on ERC20 token learn the rules for transfering tokens, including the approval pattern when a user wishes to instruct a vendor contract to sell a proportion of their tokens.
This standard provides basic functionality to transfer tokens, as well as allow tokens to be approved so they can be spent by another on-chain third party.