lexicalScope.js

let a = 'global scope';
  function outer() {
    let b = 'outer scope';
    function inner() {
      let c = 'inner scope'
      console.log(c); // Output: 'inner scope' 
      console.log(b); // Output: 'outer scope'
      console.log(a); // Output: 'global scope'
    }
    console.log(a); // Output: 'global scope'
    console.log(b); // Output: 'outer scope'
    inner();
  }
outer();
console.log(a); // Output: 'global scope'