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V8 v6.7 ships with BigInt support enabled by default!
BigInts are a new numeric primitive in JavaScript that can represent integers with arbitrary precision. @mathias walks through the functionality here: https://developers.google.com/web/updates/2018/05/bigint …pic.twitter.com/pglrcf7mH5
But how does V8 represent a BigInt with a hundred, or a thousand, or a million bits? How does BigInt arithmetic work behind the scenes? @JakobKummerow explains: https://v8project.blogspot.com/2018/05/bigint.html …pic.twitter.com/fJhIpJ8JEs
How are bigInts serialized to json?
`JSON.stringify(42n)` throws a `TypeError`.
There was a lot of discussion on serializing BigInts: https://github.com/tc39/proposal-bigint/issues/24 … +@littledan
I can't explain how thrilled I'm about this. No more 0.30000000000000004 and this may even make JS a "scientific language". Thank you V8 guys and gals :)
BigInt doesn’t solve the 0.1 + 0.2 problem just yet! However, you can implement your own abstraction on top of BigInt to avoid such issues. As the post mentions, we might get something like BigDecimal in the future.
"BigInts are a new primitive in the JavaScript language. As such, they get their own type that can be detected using the typeof operator:" I don't get it ~ how can this be a 'primitive' and yet have it's own 'type?'
What do you mean? Every primitive in JavaScript has its own type (except for null, but that’s a bug we can’t fix): - bigint - boolean - number - string - symbol - undefined - (null) The only other types are for non-primitives: - function - object
@SimonMokgotlhoa how useful is this!
precision granted! super cool gotta test it out
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