Comment by netbioserror

3 days ago

Yeah, immutability should probably use a `let` keyword and compiler analysis should enforce value semantics on those declarations.

14 comments

netbioserror

Reply
phcreery  3 days ago

Agreed, using `var` keyword for something that is non-var-ying (aka immutable) is not very intuitive.

  • ekipan  3 days ago

    Mutability is distinct from variability. In Javascript only because it's a pretty widely known syntax:

        const f = (x) => {
      const y = x + 1;
      return y + 1;
    }

    y is an immutable variable. In f(3), y is 4, and in f(7), y is 8.

    I've only glanced at this Zen-C thing but I presume it's the same story.