Why are const \ let variable not available from the sandbox?

Question

JavaScript

const vm = require('vm');

const context = {};

const code = `
  const v1 = 5;
  const v2 = 8;
  var c1 = 4;
  var c2 = 5;
`;

vm.runInNewContext(code, context);

console.dir(context)

Why are only c1 and c2 available to me from context? I did not wrap v1 and v2 in a separate block like this:

const code = `
  {const v1 = 5;
  const v2 = 8;}
  var c1 = 4;
  var c2 = 5;
`;

That is, in fact, v1 and v2 should have been in the global scope inside the sandbox like v1 and v2, and therefore in the context, no?

Answer 1

In short, the scope affects!
An article about the differences between let/const/var.