Number.fromString does not parse all number strings

Question

Number.fromString does not parse all number strings

Closed this issue 7 years ago · 2 comments

In particular, Number.fromString(123.456.toString()) produces 123 (or would produce an error if #5 was implemented). I'd expect 123.456.

Answer 1 · 2017-12-22T09:52:51.000Z

a29f339 includes this change — compare step 9 in both algorithms. Please take a look and let me know of any issues.

Answer 2 · 2020-03-04T21:44:42.000Z

This proposal's motivation is stated to offer a way to invert {BigInt,Number}.prototype.toString(radix), yet the specs and README only focus on integers, despite Number.prototype.toString(radix) potentially returning string representation of non-integer numbers.

a29f339 does not "include this change", instead it causes a SyntaxError to be thrown.

I'd expect 123.456