Treating Framework Fatigue With...

Treating Framework Fatigue With JavaScript

Tim DohertySoftware Architect

TimCDoherty timdoherty.net/in/timdoherty

TimCDoherty

???

TimCDoherty

Hey, this one looks cool!TimCDoherty

You May Suffer From Framework Fatigue

TimCDoherty

Symptoms

TimCDoherty

ConfusionTimCDoherty

• One-way reactive data flow

• Two-way data binding

• Micro-frameworks

• Virtual DOM

• Extensible HTML

• Decoupled, event-driven architecture

• MVC, MVP, MVW, MVVM, MV???

TimCDoherty

AmbivalenceTimCDoherty

https://twitter.com/jesterxl/status/598885321808424960TimCDoherty

• Another framework? Seriously?

• Mine’s The Right Framework™, who cares?

• My framework does the job, why do I need The Right Framework™?

• Do I even need a framework?

TimCDoherty

SkepticismTimCDoherty

• “3x to 5x faster on initial render and re-render scenarios”

• “More powerful than Backbone and faster or more flexible than React, Meteor, and AngularJS”

• “…faster than you ever thought possible.”

• “…a simpler programming model and better performance.”

• “More productive out of the box”

• “The most powerful, flexible and forward-looking JavaScript client framework in the world"

TimCDoherty

Reduced Capacity for Hype and Marketing Lingo

TimCDoherty

• “A Javascript Framework for Building Brilliant Applications”

• “Superheroic JavaScript MVW Framework”

• “Designed with developer ergonomics in mind, its friendly APIs help you get your job done—fast”

• “A next gen JavaScript client framework for mobile, desktop and web that leverages simple conventions to empower your creativity"

• “Simplify dynamic JavaScript UIs with the Model-View-View Model (MVVM) pattern”

• “Declarative component sugar for event-driven RequireJS apps”

• “Intuitive, Fast and Composable MVVM for building interactive interfaces”

• “A highly modular, loosely coupled, non-frameworky framework for building advanced JavaScript apps”

TimCDoherty

TimCDoherty

Treatment

TimCDoherty

Go NativeTimCDoherty

Favor built-ins (standard library) over framework/library equivalents

• Array: forEach(), find(), map(), every()

• Object: defineProperty(), assign(), keys()

• Function: bind()

• String: startsWith(), includes(), endsWith()

• Tagged Template Literals*

TimCDoherty

If performance really matters, go native anyway:

TimCDoherty

Go DeepTimCDoherty

Learn ES 5

• Everything in ES 5 is still valid JavaScript

• ECMAScript 2015 (a.k.a. ES 6) is a superset of ES 5

• Much of the new ES 6 syntax is just terse, concise ES 5

TimCDoherty

Prototypal Inheritance

• But… JavaScript has classes now, right?

• Object.create

• Differential vs. Concatenative (mixins)

Functional Programming

• First-class and higher order functions

• Pure functions

TimCDoherty

Closures, IIFEs, module pattern

Type coercion

Lexical scope and hoisting

Equality and strict equality

Asynchrony and callbacks

Function call(), apply(), and bind()

What in the hell “this” is?

TimCDoherty

Learn ES 6 (and beyond)New syntax

• Let/const, rest/spread, destructuring, arrow functions…

Enhanced standard library

• Object, array, string, math, number, regex…

Entirely new features

• Iterators/generators, proxies, map/set, promises, symbols…

TimCDoherty

(shameless plug)

• ECMAScript 6 In Depth: Part I - Tim Doherty

• ECMAScript 6 In Depth: Part II - Tim Doherty

• ECMAScript 6 In Depth: Part III - Tim Doherty

TimCDoherty

Use the Source!TimCDoherty

Ember

TimCDoherty

Angular

TimCDoherty

Lodash

TimCDoherty

• Original jQuery annotated source

• Underscore annotated source

• Backbone annotated source

• 10 Things I Learned From the jQuery Source - Paul Irish

TimCDoherty

Learn what is and isn’t JavaScripthttp://i.stack.imgur.com/SeCUb.jpgTimCDoherty

• Language vs. environment

• Browser, server, database, OS

• Host-provided APIs (DOM, XMLHttpRequest, etc.)

• Complimentary technologies (CSS)

• Go deep with the language first

• Then go deep with supporting technologies (DOM, CSS, etc.)

http://i.stack.imgur.com/SeCUb.jpg

TimCDoherty

Learn How to Learn

TimCDoherty

• Change is the only constant

• Even The Right Framework™’s days will be numbered

• You cannot know everything about everything

• Learn enough to be productive, then improve by immersion

• Develop a strategy for focused knowledge gathering

TimCDoherty

Side Effects• Language-level skills

• Increased confidence

• Better problem solving ability

• Knowing what “this” is

**Occasionally, JavaScript users have reported a desire to write their own framework, or abandon frameworks altogether, although this is rare

TimCDoherty

Thanks!

Tim DohertySoftware Architect

TimCDoherty timdoherty.net/in/timdoherty