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Unleash the power A guide to browser developer tools

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http://10.35.0.8

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Robin Osborne @rposbo

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Dean Hume @deanohume

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History of Dev tools

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Internet Explorer 7

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Firebug

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Developer tools are everywhere

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Browserist noun 1. Discrimination or prejudice based on web browser. 2. The belief that a particular web browser is superior to others.

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mozilla.org/en-US/firefox/developer

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Stable Canary

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This Session

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Four personas

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Prototyper Four personas

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Prototyper Four personas Debugger

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Prototyper Four personas Debugger Perf Nerd

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Prototyper Four personas Debugger Perf Nerd Power user

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Everyone!

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The Prototyper

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1. Understanding the layout Prototyping

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1. Understanding the layout 2. Workspaces Prototyping

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1. Understanding the layout 2. Workspaces 3. Styles Prototyping

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1. Understanding the layout 2. Workspaces 3. Styles 4. Device Mode Prototyping

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buildingstartupteams.com

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Find your way around

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Let’s go!

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1. Understanding the layout Summary - Prototyping

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1. Understanding the layout 2. Workspaces Summary - Prototyping

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1. Understanding the layout 2. Workspaces 3. Styles Summary - Prototyping

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1. Understanding the layout 2. Workspaces 3. Styles 4. Device Mode Summary - Prototyping

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The Debug er

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1. The Console Debug ing

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1. The Console 2. Inspecting Debug ing

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1. The Console 2. Inspecting 3. Debugging on Devices Debug ing

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bit.ly/chrome-api-ref ProtipTM

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Let’s go!

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1. The Console Summary - Debug ing

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1. The Console 2. Inspecting Summary - Debug ing

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1. The Console 2. Inspecting 3. Debugging on Devices Summary - Debug ing

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Perf Nerd

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RAIL

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1. Analyze scrolling performance Performance

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1. Analyze scrolling performance (R) Performance

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1. Analyze scrolling performance (R) 2. Improve Animations Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) 3. Blocking Resources Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) 3. Blocking Resources (I) Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) 3. Blocking Resources (I) 4. Page Load Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) 3. Blocking Resources (I) 4. Page Load (L) Performance

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mozilla.org/en-US/firefox/developer

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Let’s go!

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csstriggers.com ProtipTM

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csstriggers.com ProtipTM

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aerotwist.com/blog/bigrig/ ProtipTM

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1. Analyze scrolling performance (R) Summary - Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) Summary - Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) 3. Blocking Resources (I) Summary - Performance

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1. Analyze scrolling performance (R) 2. Improve Animations (A) 3. Blocking Resources (I) 4. Page Load (L) Summary - Performance

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The Power User

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1. Understanding security Power User

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1. Understanding security 2. Accessibility Power User

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1. Understanding security 2. Accessibility 3. Resources Power User

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Let’s go!

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ssllabs.com/ssltest

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1. Understanding security Summary - Power User

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1. Understanding security 2. Accessibility Power User Summary - Power User

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1. Understanding security 2. Accessibility 3. Resources Summary - Power User

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Summary

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Prototyper Summary

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Prototyper Summary Debugger

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Prototyper Summary Debugger Perf Nerd

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Prototyper Summary Debugger Perf Nerd Power user

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Further Reading

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Further Reading ● bit.ly/chrome-dev-docs ● umaar.com/dev-tips

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Further Viewing

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Further Viewing Prototyping ● youtube.com/watch?v=dJR-n8szgBc ● youtube.com/watch?v=QeKwrdGr1sI Rail ● youtube.com/watch?v=wO9GGY17NXY General ● youtube.com/watch?v=qnF1Xslb5F0 ● youtube.com/watch?v=0eSAsi3GPh4

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ProtipTM @firefoxdevtools @chromedevtools @edgedevtools

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Dean Hume @deanohume Thank you!