alt Hacker NewsHow is that better than {“amount”: “10.00”} (which also bypasses all potential floating point parsing issues that your or your counterparty’s JSON library might have)?
How is that better than {“amount”: “10.00”} (which also bypasses all potential floating point parsing issues that your or your counterparty’s JSON library might have)?
It is explicit about the fact that that number of decimal places is part of the data.
The semantics for your string “10.00” are complex - is it considered equal to “10”? To “10.000”? To “10.001”?
A user interacting with an API that uses such a string might make all sorts of assumptions about what it supports.
A user interacting with an API that has an explicit decimal places concept is being told ‘decimals matter! They can vary! Here be dragons!’