1. JavaScript Basics
Stephen Delaney

2. Review: Creating Reusable Code with Functions
Creating functions
Returning values from functions
Variable scope

3. Creating a Function
When you see parentheses following a name, you know you’re seeing a function
No semicolon after the closing brace

4. Calling a Function
The bottom line calls the function

5. Return Statements Return statements: Pass a value (only one)
Exit immediately

6. Arguments and Parameters
The argument is stored in a variable called a parameter
person is the parameter
"Frank" is the argument

7. Variable Scope
Function scope vs. global scope

8. Variable Scope
Function scope vs. global scope

9. isNaN()

10. Throwing Errors

11. Questions?

12. Review

13. Variables Variables must begin with a letter, $ or _
Variables are case-sensitive
var person and var Person are two variables
typeof

14. Strings Properties i.e. string.length Methods
i.e. string.toUpperCase()

15. Concatenation

16. Types of Numbers
Integers
10, -8,
Floating point numbers
3.14,
Scientific notation
5.7e+4 => 57000

17. Shorthand Operators += -= *= /=
x += y is shorthand for
x = x + y

18. Parsing Numbers
parseInt()
parseInt(10.6) 10
parseFloat()
parseFloat(10.6) 10.6

19. Terms
NaN
Not a Number
DRY
Don’t Repeat Yourself

20. The Math Object Math.round() Math.round(10.6)  11 Math.floor()
Math.ceil()
Math.ceil(10.6)  11

21. The Math Object
Math.random()
Floating number, from 0 (inclusive) to 1 (exclusive)

22. Comparison Operators Operator Meaning True expressions == Equality
10 == '10'
===
Strict equality
(2 * 5) === 10 !=
Inequality
9 != 10
!==
Strict inequality
'10' !== 10
>
Greater than
20 > 10
>=
Greater than or equal
'10' >= 10
<
Less than
10 < 30
<=
Less than or equal
'10'<= 10

23. And Operator: &&
Condition 1
Condition 2
Result
TRUE
FALSE

24. Or Operator: ||
Condition 1
Condition 2
Result
TRUE
FALSE

25. Not Operator: !
Condition
Result
TRUE
FALSE

26. If Statements
integrated development environment

27. What’s next?

28. Next Steps
jQuery
jQuery is used by 71.8% of all websites. That is a JavaScript library market share of 96.4%.

29. Next Steps AJAX Asynchronous JavaScript And XML
Get data without a page refresh

30. Next Steps
MEAN stack
“In the MEAN stack, we use MongoDB as our database. We write most of our code in Javascript. We rely on Node and Express.js to host our application and serve APIs/Views. We use AngularJS to render our views that are served by Express.”

31. Next Steps
MEAN stack

32. Navigate to library: Sort by difficulty Select course
Select JavaScript

33. Recommended Syllabus JavaScript Loops, Arrays and Objects
JavaScript and the DOM
jQuery Basics
There is also a shorter one called Introduction to jQuery.
AJAX Basics

34. Recommended Syllabus Interactive Web Pages with JavaScript
Object-Oriented JavaScript
Node.js Basics
Build a Simple Dynamic Site with Node.js
Express Basics
Build a REST API With Express
Mongo Basics*
Angular Basics*
Building a MEAN Application
*Indicates a course that is not under JavaScript
Application program interface (API)
Representational state transfer (REST)
Create, read, update, destroy (CRUD)

35. NoSQL vs. SQL

36. Comparing NoSQL and SQL
Are you Google?
Do you know what you are building?
What framework are you in?

37. Comparing NoSQL and SQL
What is NoSQL?
SQL vs. NoSQL
The NoSQL Debate: Automatic vs. Manual Transmission
When should I use a NoSQL database instead of a relational database?
NoSQL Use Case Scenarios or WHEN to use NoSQL

38. Comparing NoSQL and SQL

39. ORM

40. ORM Object-relational Mapping Translates between you and SQL
Makes life easier!
MEAN stack is optimized for MongoDB (Mongoose ORM), but if you would like to use SQL:
Sequelize
Treehouse: Using SQL and Node.js with Sequelize
Bookshelf.js

41. Thanks!