Code snippet used in "Smart Contract Security Fundamentals" course: https://security.6figureblockchaindeveloper.com/smart-contract-security-fundamentals

Ethereum Web3.js Storage Retrieval Function

let storage = []

let callbackFNConstructor = (index) => (error, contractData) => {
  storage[index] = contractData
}

for(var i = 0; i < 6; i++) {
  web3.eth.getStorageAt(contract.address, i, callbackFNConstructor(i))
}