pszponder

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

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// Define Variables in the JavaScript Global Scope
var vGlobal = "I was defined in the global scope using the var keyword";
let lGlobal = "I was defined in the global scope using the let keyword";
const cGlobal = "I was defined in the global scope using the const keyword";

// Access the variables defined in the global scope from the global scope
console.log("Accessing vGlobal from global scope: ", vGlobal);
console.log("Accessing lGlobal from global scope: ", lGlobal);
console.log("Accessing cGlobal from global scope: ", cGlobal);

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function myFunc() {
  // Declare a variable inside myFunc's funciton scope
  var x = 1;
  console.log(x);

  if (true) {
    var y = 2;
    console.log(y);
  }
  console.log(y);

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function myFuncVar() {
  // Declare a variable using var inside myFunc's funciton scope
  var x = 1;
  console.log(x);

  if (true) {
    // Since var is function scoped and not block scoped,
    // we are actually overwriting the value of the x variable
    var x = 2;
    console.log(x);

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// This is an example of block scope,
// typically, the curly brackets will be attached to something like an if, for, while loop
// and not by themselves as seen in this example
// but this makes it easier to illustrate hw block scope works

// Lets call this block scope A
{
  // Anything defined inside these braces is block scope
  let a = 1;
  console.log(a); // 1

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// Var does not follow block scoping
{
  var a = 1;
  console.log(a); // 1
}

console.log(a); // 1

{
  {

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// Define variable x and initialize its value to 1
let x = 1;

// Define function that will console.log the value of x
function myFunc() {
  console.log(x);
}

// Define function that defines a local variable x = 50 and calls myFunc()
function logVariable() {

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// Defining x in the global scope of the file
let x = 0;

// Defining myFunc, everything inside is in it's function scope
function myFunc() {
  // In order to set a value for y, JavaScript needs to find the value of x
  // Since the value of x is not defined within the funcion scope,
  // we have to go to the next scope outside the function (which happens to be the global scope)
  // In the global scope, we find x = 0 so y will be initialized with a value of 0 as well
  let y = x;

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let x = "Hello";
console.log(x);

pszponder

```js
// Lines 1 and 2 are equivalent to stating:
// let x = "Hello";
let x; // Line 1
x = "Hello"; // Line 2
console.log(x); // Line 3
```