Then how did Republicans repeal it just recently with zero Dem votes?
Repealing it had Republican support during the Biden term too, they even introduced a bill in2023 to repeal it which the Democrats killed.
https://www.congress.gov/bill/118th-congress/senate-bill/282...
Democrats really wanted the changes to take place since their platform is all about higher taxes on companies and high earners.
They actually did NOT repeal the portion relevant to software development being considered research - it was actually made permanent and is pretty trivial to find by searching for "software development" against the text of the bill. What did change was an additional section to how research is capitalized, with domestic research being able to deduct immediately while other (i.e. foreign) research is subject to the amortization rules.
That’s incorrect for Java, possibly also for C# and JS.
In any language where strings are opaque enough types [1], the in-memory representation is an implementation detail. Java has been such a language since release 9 (https://openjdk.org/jeps/254)
[1] The ‘enough’ is because some languages have fully opaque types, but specify efficiency of some operations and through it, effectively proscribe implementation details. Having a foreign function interface also often means implementation details cannot be changed because doing that would break backwards compatibility.
> JS use floating point for all numbers. The max accurate integer is 2⁵³−1
That is incorrect. Much larger integers can be represented exactly, for example 2¹⁰⁰.
What is true is that 2⁵³−1 is the largest integer n such that n-1, n, and n+1 can be represented exactly in an IEEE double. That, in turn, means n == n-1 and n == n+1 both will evaluate to false, as expected in ‘normal’ arithmetic.