zomars / frontend-nanodegree-mobile-portfolio Goto Github PK

Your challenge, if you wish to accept it (and we sure hope you will), is to optimize this online portfolio for speed! In particular, optimize the critical rendering path and make this page render as quickly as possible by applying the techniques you've picked up in the Critical Rendering Path course.

To get started, check out the repository, inspect the code,

You can preview this project here.

##Portfolio Index

In general, followed page speed insights recommendations.

The following performance implementations were realized:

• Image Minification – CSS inlining
• CSS & Javascript minification
• HTML Minification

Images were manually minified and reduced were necessary.

##60 FPS, Main.js

• Moved capitalization function from String.prototype.capitalize to a css rule
• De-nested the following function delcarations:
  • changleSliderLabel
  • determineDx
  • changePizzaSizes
  • sizedSwitcher
• Moved DOM queries out of loops where it was necessary
• Debounced onScroll Animation
• Switched for loops to cached versions if applicable
• Switched animation CSS to translateX property for better performance
• Switched # of moving pizzas to a calculated value based on availwidth & availheight to reduce overall count
• Replaced querySelector & querySelectorAll with their more performant counterparts where applicable.
• Added translate3d property to moving pizza elements to force 3d acceleration

####Part 1: Optimize PageSpeed Insights score for index.html

Some useful tips to help you get started:

1. Check out the repository
2. To inspect the site on your phone, you can run a local server

$> cd /path/to/your-project-folder
$> python -m SimpleHTTPServer 8080

1. Open a browser and visit http://frontend-nanodegree-mobile-portfolio.dev (in my case).
2. Download and install ngrok to make your local server accessible remotely.

$> cd /path/to/your-project-folder
$> ngrok http -host-header=rewrite frontend-nanodegree-mobile-portfolio.dev:80

1. Copy the public URL ngrok gives you and try running it through PageSpeed Insights! Optional: More on integrating ngrok, Grunt and PageSpeed.

Profile, optimize, measure... and then lather, rinse, and repeat. Good luck!

####Part 2: Optimize Frames per Second in pizza.html

To optimize views/pizza.html, you will need to modify views/js/main.js until your frames per second rate is 60 fps or higher. You will find instructive comments in main.js.

You might find the FPS Counter/HUD Display useful in Chrome developer tools described here: Chrome Dev Tools tips-and-tricks.

• For image compression.

  $> jpegoptim --strip-all <path>

• Optimizing Performance

• Analyzing the Critical Rendering Path

• Optimizing the Critical Rendering Path

• Avoiding Rendering Blocking CSS

• Optimizing JavaScript

• Measuring with Navigation Timing. We didn't cover the Navigation Timing API in the first two lessons but it's an incredibly useful tool for automated page profiling. I highly recommend reading.

• The fewer the downloads, the better

• Reduce the size of text

• Optimize images

• HTTP caching

The portfolio was built on Twitter's Bootstrap framework. All custom styles are in dist/css/portfolio.css in the portfolio repo.

• Bootstrap's CSS Classes
• Bootstrap's Components

Feeling uninspired by the portfolio? Here's a list of cool portfolios I found after a few minutes of Googling.

• A great discussion about portfolios on reddit
• http://ianlunn.co.uk/
• http://www.adhamdannaway.com/portfolio
• http://www.timboelaars.nl/
• http://futoryan.prosite.com/
• http://playonpixels.prosite.com/21591/projects
• http://colintrenter.prosite.com/
• http://calebmorris.prosite.com/
• http://www.cullywright.com/
• http://yourjustlucky.com/
• http://nicoledominguez.com/portfolio/
• http://www.roxannecook.com/
• http://www.84colors.com/portfolio.html