Summary
This chapter was relatively more complex compared to other chapters. This chapter dealt primarily with creating your own cryptocurrencies and NFTs. Cryptocurrencies can be either fungible or non-fungible. This chapter covered both types of tokens by implementing ERC20 and ERC721 tokens.
A complete implementation along with the conceptual understanding of ERC20 was provided in the first half of the chapter, and the latter half was dedicated to the ERC721 implementation.
The ERC721 implementation also has dependencies on other standards such as ERC223 and ERC165. Both these standards were covered, both implementation- and concept-wise. It's now time to move on to learn Solidity design patterns, which will be discussed at length in the next chapter.
