JS Function Scole

js-function-scope.js

const run = () => {
  // "run" function scope
  const two = 2;
  let count = 0;
  const run2 = () => { }

  console.log(two);   // 2
  console.log(count); // 0
  console.log(run2);  // function
}

run();
console.log(two);   // throws ReferenceError
console.log(count); // throws ReferenceError
console.log(run2);  // throws ReferenceError