Simple issue but couldn't find solution. When I run a console to interact with a function that returns uint in a smart contract, it shows in hexadecimal notation. Like this:
<BN: a>
(meaning the value 10 in decimal)
How do I specify the output format so I can see the value in decimal? I don't think it's necessary for that matter, but the coding is as follows:
uint dist;
function getDist() public view returns (uint distancia){
return dist;
}
You haven't shared your JavaScript code, but presumably you're just logging the BN directly? Try calling .toString() on whatever variable holds the BN.
.toString() takes a parameter, that's why it wasn't working for me before. Thanks.
Commented
Jan 13, 2019 at 15:43
.toString()?
Commented
Jan 13, 2019 at 15:52
.toString() without any parameters to get the default behavior of base 10 with no extra padding: github.com/indutny/bn.js/blob/master/lib/bn.js#L447
Commented
Jan 13, 2019 at 15:55
contractInstance.getDist().then(function(x){console.log(x.toString(10))}) and it worked
Commented
Jan 13, 2019 at 15:55
I don't think returning decimal from Solidity function is supported at the moment. The reason is using hex-decimal saves more space than decimal when transmitting data. The conversation from hex to other formats like string or decimal needs to happen at front-end either manually or via a js library.
