2. About us
We train developers and data
scientists through 1-on-1
mentorship and career prep
3. About me
• Anna Mendoza
• Designer + Developer
• Work in Design + Digital
Services as a hybrid
• Co-Founder Curve Design
• Thinkful teacher FEWD + UX
+ Backend ( full stack! )
4. Thank you for joining us
HI EVERYBODY!
let’s talk about you first
5. What’s your programming background?
• Is this your first time writing code?
• Been self teaching for 1-3 months?
• Been at this for a couple of years?
• Been at this since you were a kid? ( secret ninja )
Let’s see a show of hands!
6. Key Topics
• HTML/CSS Live Editing
• Mobile & responsive testing
• Editing with “Sources”
• Using the console
• Javascript Debugging
• Network performance
7. Setup — Download Chrome
• Standard for developers (Google!)
• Simple & polished
• Mobile & Desktop
• Firefox & Safari are OK
• Avoid Internet Explorer!
9. How do I open DevTools?
• Go to a page in Chrome
• Right Click => Inspect
• Also — Cmd + Shift + I
10. What are the benefits?
• Inspect Document Object Model (DOM)
• Update HTML/CSS in real-time
• Test responsive and mobile friendliness
• Run Javascript in console
• Test & debug Javascript
• Measure & improve performance
12. Typical Workflow
• This style (or code) isn’t working!
• Open HTML/CSS/Javascript
• Guess where the problem is
• Make change
• Save change
• Refresh page
• Did it work?
13. Workflow with DevTools
• This style (or code) isn’t working!
• Open DevTools (“Inspect”)
• Make change
• Did it work?
15. Live Editing HTML
• Inspect element
• Expand/Collapse
• Edit HTML
• Add attributes
• Click & drag
• Delete
16. Challenge
• Change your name to a friend’s name
• Try and change picture (advanced)
• Take a picture of their page
• Send to friend & say you hacked their account
17. Live Editing CSS
• See computed CSS styles
• CSS for states
• Add CSS properties
• Modify CSS properties
• Remove CSS properties
• Links to CSS source files
18. Challenge
• Change background to your favorite color
• Add a fun border to the post button
• Delete Newsfeed (advanced)
27. Load times are important!
• Yahoo: reducing page load by .4 seconds increased
traffic by 9%
• Google: increasing page load times from .4 to .9
seconds decreased traffic by 20%
• Amazon: every .1 second increase in load time
decreases sales by 1%
28. Network Features
• Test load times
• Throttle to different speeds
• See which files are cached or not
• See which files are causing slowdowns
• See file download sequence
• Google PageSpeed!
29. Network Challenge
• Go to https://dream-walker.herokuapp.com/
• What is page load time?
• What files are causing slowdowns?
• What do you recommend as a fix?
31. More about Thinkful
• Anyone who’s committed can learn to code
• 1-on-1 mentorship is the best way to learn
• Flexibility matters — learn anywhere, anytime
32. Our Program
You’ll learn concepts, practice with drills, and build
capstone projects — all guided by a personal mentor
34. Web Development Syllabus
• Frontend Development (HTML, CSS, Javascript)
• Frontend “Frameworks” (React.js)
• Backend Development (Node.js)
• Electives (Python, Ruby, Swift, Angular, UX)
• Computer Science Fundamentals
• Technical interviews + Career prep
35. Try us out!
Try the program for two
weeks, includes six mentor
sessions - $50
Learn HTML/CSS/JavaScript
Option to continue onto web
development bootcamp
Come talk to me if you’re
interested (or email me at
noel@thinkful.com)
