/* global scope */
var local = true;
var global = true;

function outer() {
    /* local scope */
    var local = true;
    var global = false;
    console.log(local);
    console.log(global)
    /* nearest scope = outer */
    let isEqual = local = !global;
    console.log(isEqual);

    inner();

    function inner() {
        /* nearest scope = outer */
        local = false;
        global = false;
        console.log(local)
        console.log(global)
        /* nearest scope = undefined */
        /* defaults to defining a global */
        let isEqual = public = global;

        console.log(isEqual)
    }
}

outer()