I wish they had come up with something else than "const". I can't not see it as anything other than "the traditional meaning like const API_URL". Those writing the spec should have forseen this and used something else. I suspect that this is something like arrow functions. The concept of arrow functions is great, but using something that looks like "equal to or greater than" was poor judgement. I know that this was taken from other programming languages and I can't help but suspect that using const to mean something other than it's tradition meaning is something borrowed from some other language.