ERC20 token contract has several functions that you must know how to use.
In this video I will explain how to use those functions, transfer, approve and transferFrom.

Code: https://solidity-by-example.org/app/e...

Truffle: https://www.trufflesuite.com/docs/tru...
Remix IDE: http://remix.ethereum.org
Solidity: https://solidity.readthedocs.io

Follow on Twitter: @ProgrammerSmart   / programmersmart  
Join me on Discord:   / discord  
Website: https://smartcontractprogrammer.com