No reason to turn something trivial into rocket science.
You examples does not mention the type of variables involved. And dependent on the type and the language your first example may be (a lot more) correct compared to your third example. Ie. negative floating point numbers.
But who says that a library implementation is a lot better than what you as a programmer can come up with?
In particular with all these "micro" libraries written by random people.
Are they actually smarter than you? Do they understand the "edge" cases as you do?
Most people don't bother with looking at the library source code they are importing. And I don't blame them because things are in general a mess and not only for JavaScript.
The solution, for me at least, is to import less and be more conversative with what you import.
You examples does not mention the type of variables involved. And dependent on the type and the language your first example may be (a lot more) correct compared to your third example. Ie. negative floating point numbers.
But who says that a library implementation is a lot better than what you as a programmer can come up with?
In particular with all these "micro" libraries written by random people.
Are they actually smarter than you? Do they understand the "edge" cases as you do?
Most people don't bother with looking at the library source code they are importing. And I don't blame them because things are in general a mess and not only for JavaScript.
The solution, for me at least, is to import less and be more conversative with what you import.