Solidity functions return uint as hex

Question

Using Ethers JS library in javascript code. When calling a solididy function that returns an Uint type, its returning an object with the uint in hex format.

SOLIDITY function

function totalRecords() public view returns (uint256){
    return Records.length;
}

ETHERS JS call

CONTRACT.totalRecords().then( _num => { console.log("TOTAL_RECORDS " + _num); });

REPONSE

Object { _hex: "0x0a", _isBigNumber: true }
​
_hex: "0x0a"
​
_isBigNumber: true

Answer 1

I get the uint of the returned object as hex with ethers.utils.arrayify() function

CONTRACT.totalRecords().then( _num => { 
   console.log("TOTAL_RECORDS ");  
   console.log( ethers.utils.arrayify( _num._hex )[0] ); 
});

Answer 2

The _hex is an internal value, and toString() should be available for you.

-CONTRACT.totalRecords().then( _num => { console.log("TOTAL_RECORDS " + _num); });
+CONTRACT.totalRecords().then( _num => { console.log("TOTAL_RECORDS " + _num.toString()); });