How to create buy, sell and transfer functions

[LordReya]

Hey guys. So I'm kinda confused. I don't know how to create buy, sell or transfer functions. Where exactly should you start? Should these functions be written in the Solidity Contract or in the Deployment function via Javascript. I saw that many also use python for this. What is the best way to approach learning these functions, and where is the best place to dive deeper in to this?

Thanks in advance. I hope this is not too much out of context :)

[alymurtazamemon]

@LordReya What do you want to buy, sell and transfer?

[LordReya]

Cryptocurrencies on the ERC20 of course :)

[PatrickAlphaC]

Start from the start of the course and get through lesson 14 and you'll know the answer ;)

[LordReya]

2 lessons to go! Thank you