How to get balanceOf of tron smart contract

I am using tronlink chrome extension and trying to call balanceOf method of a smart contract. I am very new to smart contract. Unable to find any solution. Please check my code:

let contractDetail = await window.tronWeb.trx.getContract('TG7DLMkJPYeG4QTZ8Qfgk9Mu7ePM5SQpbN'); let contract = await window.tronWeb.contract(contractDetail.abi.entrys, 'TG7DLMkJPYeG4QTZ8Qfgk9Mu7ePM5SQpbN'); balance = contract.balanceOf.call('TNkJRejobNuZhV2LiwfGQ7wPNiLtcbDueS'); console.log(balance) //Error: Uncaught TypeError: Cannot read property 'call' of undefined 

asked Mar 1, 2021 at 16:52
Haren Sarma Haren Sarma
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I’m not familiar with tronlink and have no way to check the code, so I’m not going to post it as answer. But it seems like the line should be contract.balanceOf(‘