Comment by err4nt

When it says "arrays, which may be thought of as functions whose domains are isomorphic to contiguous subsets of the integers", is it saying that this:

    const list = ['a', 'b', 'c']

is syntactic sugar for expressing something like this:

    function list(index) {
      switch (index) {
        case 0: return 'a'
        case 1: return 'b'
        case 2: return 'c'
      }
    }