Intro to js august 31

Intro to JavaScript
August 2017
WIFI: Cross Camp.us Events
http://bit.ly/introjs-la
1

Instructor
Tim Paik
Program Manager at Thinkful
Former Thinkful Front End Web
Development student
TAs
Wi-Fi: Cross Camp.us Events bit.ly/introjs-la
2

About you
What's your name?
What brought you here today?
What is your programming experience?
bit.ly/introjs-laWi-Fi: Cross Camp.us Events
3

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.
4

Suggestions for learning
Don't treat this as a drill, we're making something realwe're making something real
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
5

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)
6

How the web works
Type a URL from a client (e.g. google.com)
http://www.bit.ly/introjs-la
Browser sends an HTTP request asking for specific files
Browser receives those files and renders them as a website
Wi-Fi: Cross Camp.us Events
7

Client/Servers
Client (sends requests)
Frontend Developer
Manages what user sees
Server (sends response)
Backend Developer
Manages what app does
Wi-Fi: Cross Camp.us Events http://www.bit.ly/introjs-la
8

Example: facebook.com
Client Server
Open browser
and navigate to
facebook.com
HTML, CSS, &
Javascript render
newsfeed
Request
Response
Algorithm
determines
content of feed.
Sends back
HTML, CSS,
Javascript ﬁles
9
Application LogicApplication Logic
Initial requestInitial request
Following responseFollowing response

How this relates to today
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
10
Initial requestInitial request
Following responseFollowing response
We'll be writing Javascript, the code
that the browser uses to run the app
http://www.bit.ly/introjs-laWi-Fi: Cross Camp.us Events

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
11

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
12

Deﬁning a variable with Javascript
var numberOfSheep = 20
Initialize variable
Name of variable
Value of variable
13

Variable examples
14

Declaring a function with Javascript
function greet() {
return "Hello world!";
}
Initialize function Name of function
What the function does
15

Function examples
16

If/Else Statements
go to gas stationkeep driving
if false if true
need gas?
family roadtrip
17

If/Else Statements
function familyRoadtrip() {
if (needGas == true) {
getGas();
}
else {
keepDriving();
}
}
18

Comparing Values
== (equal to)
5 == 5 --> true
5 == 6 --> false
!= (not equal to)
5 != 5 --> false
5 != 6 --> true
19

If/Else Statements and Comparing Values
20

Parameters within functions
function adder(a, b) {
return a + b;
}
adder(1,2);
Parameters in declaration
Parameters used
within the function
21

Examples of parameters within functions
22

Real developers use Google... a lot
23

Repl.it setup & ﬁrst steps!
http://bit.ly/tf-intro-js-challenges
24 . 1

For aspiring developers, bootcamps ﬁll the gap
Source: Bureau of Labor Statistics
24 . 3

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
24 . 4

Our students receive unprecedented support
1-on-1 Learning Mentor
1-on-1 Career MentorProgram Manager
Los Angeles Community
You
24 . 5

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
24 . 6

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
24 . 7

Intro to js august 31

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Intro to js august 31