I have been writing my first few contracts. So, as I understand it, once you write, compile, and deploy your contract, the only way to then interact with that contract is via something like web3.js and the ABI Definitions within the contract itself.
My question is: How does one update the contract itself after it has been deployed? What if something went wrong, or you want to make improvements within the contract code itself?
Is this possible, or something you need to setup via the ABI definitions in the first place. Just seems hard that I would know what to expect in the future, but then again maybe I am thinking of this completely wrong. Any help would be greatly appreciated.