Object JavaScript - Scope

ojs-scope-example.js

var globalvar = 1; // Global Scope
 
function outer() {
    var outervar = 2; // Scope is within outer()
     
    function inner() {
        var innervar = 3; // Scope is within inner()
        console.log(globalvar); // => 1
        console.log(outervar); // => 2
        console.log(innervar); // => 3
    }
     
    console.log(globalvar); // => 1
    console.log(outervar); // => 2
    console.log(innervar); // => Reference Error;
}
 
console.log(globalvar); // => 1
console.log(outervar); // => Reference Error
console.log(innervar); // => Reference Error