Advocatus Diaboli – Throne of JS

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Throne of JS Advocatus Diaboli Eric Ferraiuolo @ericf

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“ ” It’s no longer good enough to build web apps around full page loads and then “progressively enhance” them to behave more dynamically. Building apps which are fast, responsive and modern require you to completely rethink your approach. — ThroneofJS.com

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What’s Our End Goal?

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Fast

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Initial Rendering

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Rendering /users/

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/users/ HTML Gob Maeby Tobias

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Rendering /#/users/

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/#/users/ HTML Loading…

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/#/users/ HTML Loading… /app.js JavaScript

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/#/users/ HTML Loading… /app.js /api/users JSON JavaScript

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/#/users/ HTML /app.js JavaScript /api/users JSON Gob Maeby Tobias

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Initial Rendering on Server is Faster

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URLs

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App vs Site

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Whose Data?

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Everyone’s? Full-path URLs

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Server’s Ability?

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Dumb Server? Hash URLs

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/#!/

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NO!

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Responsive

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Enhance

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pjax

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Removes Unnecessary Full Page Loads

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Does Not Break Browser Conventions

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Client-Side Routing

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Client Handles Request

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Data in Memory? No HTTP Request

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React After URL Changes

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Clicks Page Reloads Back/Forward Programmatic URL

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Clicks Page Reloads Back/Forward URL Route Handlers Programmatic

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Clicks Page Reloads Back/Forward URL Route Handlers Update UI Programmatic

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Seamlessly Support /users/ & /#/users/

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Modern

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DRY

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Templates

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Code Reuse

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Thanks! Eric Ferraiuolo @ericf

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Symbol Attributions "Community", "Computer", "iPhone", "iPad", "Dancer" by Sonkarlay Vaye, "Browser" by Yellow, "Cloud", "User" by T. Weber, "Scale" from thenounproject.com collection.