Convert 64 bit Steam ID to 32 bit account ID

Question

How do I convert a 64 bit steam ID to a 32 bit account ID? Steam says to take the first 32 bits of the number, but how do you do this in Node?

Do I need to use BigNumber to store the 64 bit int?

Answer 1

To convert a 64 bit Steam ID to a 32 bit Account ID, you can just subtract 76561197960265728 from the 64 bit id.

This requires bigNumber in node:

bignumber = require("bignumber.js");
console.log(bignumber('76561197991791363').minus('76561197960265728'))