This document provides an introduction to JavaScript fundamentals, including: - An overview of the instructor and Thinkful program. - Key JavaScript concepts like variables, functions, if/else statements, and parameters are explained. - Examples are given of how JavaScript code is used on the client-side to power websites and apps. - Attendees are instructed on how to complete coding challenges using Repl.it to practice their new skills. - Information is provided on Thinkful's free coding course that teaches HTML, CSS, JavaScript fundamentals over two weeks.

1. Intro to JavaScript:
Fundamentals
January 2018
bit.ly/phx-intro-js
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2. About us
Dave Hoel, Instructor
Software Developer
Thinkful Graduate
Joe Previte, TA
Digital Marketer, Software Developer
Thinkful Workshop Instructor
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3. About you!
What's your name?
What brought you here today?
What is your programming experience?
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4. About Thinkful
We train developers and data scientists
through 1x1 mentorship and project-based
learning.
Guaranteed.Guaranteed.
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5. Agenda
Learn key JavaScript concepts (20 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)
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6. 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
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7. Client/Servers
Client (sends requests)
Frontend Developer
Manages what user sees
Server (sends response)
Backend Developer
Manages what app does
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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
Application LogicApplication Logic
Initial requestInitial request
Following responseFollowing response
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9. 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
Application LogicApplication Logic
Initial requestInitial request
Following responseFollowing response
We'll be writing JavaScript, the code
that the browser uses to run the app
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10. Defining a variable with JavaScript
var numberOfSheep = 20
Initialize variable
Name of variable
Value of variable
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11. Variable examples
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12. Declaring a function with JavaScript
function greet() {
return "Hello world!";
}
Initialize function Name of function
What the function does
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13. Function examples
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14. If/Else Statements
go to gas stationkeep driving
if false if true
need gas?
family roadtrip
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15. If/Else Statements
function familyRoadtrip() {
if (needGas == true) {
getGas();
}
else {
keepDriving();
}
}
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16. Comparing Values
== (equal to)
5 == 5 --> true
5 == 6 --> false
!= (not equal to)
5 != 5 --> false
5 != 6 --> true
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17. If/Else Statements and Comparing Values
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18. Parameters within functions
function adder(a, b) {
return a + b;
}
adder(1,2);
Parameters in declaration
Parameters used
within the function
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19. Examples of parameters within functions
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20. Real developers use Google... a lot
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21. Repl.it setup & first steps!
http://bit.ly/tf-intro-js-challenges
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23. Thinkful's Free Course
75+ hours of curriculum for two weeks
HTML, CSS and JavaScript
Unlimited mentor-led Q&A sessions
Personal Program Manager (me!)
Completed work will roll over into paid
program, tuition will be prorated
Thinkful Coding Prep CourseThinkful Coding Prep Course
$1500 FREEFREE
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