How to solve the problem of large integer accuracy

<script src="./msgpack.js"></script>
<script>
    const { encode, decode } = msgpack5()
    var buffer = encode({ num: 86699530287996692 })
    var data = decode(buffer)
    console.log(data) // => { num: 86699530287996690  }
</script>

[simoneb]

You may want to check out how the Date codec is implemented, but I think the implementation for BigInt should be much simpler than that https://github.com/mcollina/msgpack5/blob/master/lib/codecs/DateCodec.js

[weijian-zhu]

That sounds cool, but I still don’t know enough about it to know where to start