> Mutability is a property of variable, not of a value. [...] This has nothing to do with whether it can be reassigned (i.e. mutability). I feel like you're us

> Mutability is a property of variable, not of a value. [...] This has nothing to do with whether it can be reassigned (i.e. mutability). I feel like you're using "mutable" too narrowly, as it's used colloquially in some programming languages. E.g. in JS, MDN itself talks about "reassignment"[0] and not "mutability" even though people often use "mutability" as a word to refer to the distinction between `const` and `let`. The only mention of mutability there is: > Others may prefer `let` for non-primitives that are mutated I.e. explicitly using `let` for mutated arrays, even if not reassigned, to make the signal mutability (which JS cannot express). Note that you used "reassignment" which is the specific word for "mutating a binding", but the article is not referring to bindings at all. [0] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/let https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...