Address decode in Algorand

Hello, everyone.
I’m a beginer that study Algorand now.
I have one problem to decoding address of Algorand smart contract. Please check this capture.

I would like to decode this variable. But the type of this variable is address.

const appArgs = [ .... addr:${FeeConfig.fee_addr}, ... ];

Please help me, if possible.

Thank you.

See How to convert public key back to address in js sdk and Get a fund account from Global State - #3 by mzaatar