Intro to JavaScript

1. Intro to Javascript
October 2017
WIFI: Guest2017
Password: Launch2017
http://bit.ly/js-intro-dc
1

2. Instructor
TJ Stalcup
Lead Mentor @ Thinkful
WealthEngine, API Evangelist
PokemonGO Enthusiast
TAs
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 2

3. About you
What's your name?
What brought you here today?
What is your programming experience?
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 3

4. About Thinkful
Thinkful helps people become developers or data scientists
through 1-on-1 mentorship and project-based learning
These workshops are built using this approach.These workshops are built using this approach.
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 4

5. Suggestions for learning
Don't get discouraged, struggle leads to masterystruggle leads to mastery
Don't be shy, take full advantage of our supporttake full advantage of our support
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 5

6. Agenda
Learn key Javascript concepts (30 min)
Go over assignments (10 min)
Complete assignments with our support! (30 min)
Go over answer key (10 min)
Steps to continue learning (10 min)
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 6

7. How the web works
Type a URL from a client (e.g. google.com)​
Browser sends an HTTP request asking for specific files
Browser receives those files and renders them as a website
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 7

8. Client/Servers
Client (sends requests)
Frontend Developer
Manages what user sees
Server (sends response)
Backend Developer
Manages what app does
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 8

9. Example: facebook.com
Client Server
Open browser
and navigate to
facebook.com
HTML, CSS, &
Javascrip render
newsfeed
Request
Response
Algorithm
determines
content of feed.
Sends back
HTML, CSS,
Javascript files
Application LogicApplication Logic
Initial requestInitial request
Following responseFollowing response
bit.ly/js-intro-dc
9
WiFi: Guest2017
Password: Launch2017

10. Example: facebook.com
Client Server
Open browser
and navigate to
facebook.com
HTML, CSS, &
Javascrip render
newsfeed
Request
Response
Algorithm
determines
content of feed.
Sends back
HTML, CSS,
Javascript files
Application LogicApplication Logic
Initial requestInitial request
Following responseFollowing response
We'll be writing Javascript, the code
that the browser uses to run the app
10
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017

11. History of Javascript
Written by Brendan Eich in 1995 for Netscape
Initial version written in 10 days
Completely unrelated to Java, but maybe named after it to
draft off its popularity
Over 10 years, became default programming language for
browsers
Continues to evolve under guidance of ECMA International,
with input from top tech companies
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 11

12. Javascript today
Has large community of developers, libraries and
frameworks
Lots of job opportunities
Also the syntax is easier to understand for first-time
developers
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 12

13. Defining a variable with Javascript
var numberOfSheep = 20
Initialize variable
Name of variable
Value of variable
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 13

14. Variable examples
bit.ly/js-intro-dc
JSBin.com
WiFi: Guest2017
Password: Launch2017 14

15. Declaring a function with Javascript
function greet() {
return "Hello world!";
}
Initialize function Name of function
What the function does
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 15

16. Function examples
bit.ly/js-intro-dc
JSBin.com
WiFi: Guest2017
Password: Launch2017 16

17. If/Else Statements
go to gas stationkeep driving
if false if true
need gas?
family roadtrip
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 17

18. If/Else Statements
function familyRoadtrip() {
if (needGas == true) {
getGas();
}
else {
keepDriving();
}
}
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 18

19. Comparing Values
== (equal to)
5 == 5 --> true
5 == 6 --> false
!= (not equal to)
5 != 5 --> false
5 != 6 --> true
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 19

20. If/Else Statements and Comparing Values
bit.ly/ js-intro-dc
JSBin.com
WiFi: Guest2017
Password: Launch2017 20

21. Parameters within functions
function adder(a, b) {
return a + b;
}
adder(1,2);
Parameters in declaration
Parameters used
within the function
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 21

22. Examples of parameters within functions
bit.ly/ js-intro-dc
JSBin.com
WiFi: Guest2017
Password: Launch2017 22

23. Real developers use Google... a lot
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 23

24. Repl.it setup & first steps!
http://bit.ly/tf-intro-js-challenges
bit.ly/js-intro-dcWiFi: Guest2017
Password: Launch2017 24

25. Ways to keep learning
25

26. For aspiring developers, bootcamps fill the gap
26

27. 91%91%
job-placement rate + job guarantee
Link for the third party audit jobs report:
https://www.thinkful.com/bootcamp-jobs-statshttps://www.thinkful.com/bootcamp-jobs-stats
Thinkful's track record of getting students jobs
27

28. Our students receive unprecedented support
1-on-1 Learning Mentor
1-on-1 Career MentorProgram Manager
DC Community
You
28

29. 1-on-1 mentorship enables flexible learning
Learn anywhere,
anytime, and at your
own schedule
You don't have to quit
your job to start career
transition
29

30. Thinkful Two-Week Trial
Talk to one of us and email benjy@thinkful.combenjy@thinkful.com to learn more
Two-week course with 6 mentor
sessions for $50 ($750 value)
Start with HTML, CSS and JavaScript
Option to continue with full bootcamp
Financing & scholarships available
Offer valid for one week after eventOffer valid for one week after event
BenjyBenjy SchechnerSchechner
Education Advisor
30