const erc20Contracts = [
{ address: '0xdac17f958d2ee523a2206206994597c13d831ec7', name:'Tether USD' , ticker:'USDT'}
];
for (let token of erc20Contracts) {
const contract = new web3.eth.Contract(erc20AbiJson, token.address);
const tokenBalance = await contract.methods.balanceOf(myAddress).call();
console.log(token.name+': '+ web3.utils.fromWei(tokenBalance));
}