Bower introduction - Speaker Deck

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Bower

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We make websites

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Lots of stuff Bootstrap Foundation normalize.css fitvid.js Modernizr d3 jQuery Underscore / Lo-dash Backbone Angular JS Effeckt.css Masonry Font Awesome Compass H5BP jQuery UI Easing form gallery modal / popup tooltip base CSS helper JS

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How do you get it? Download git clone Saved locally, copy ﬁles

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Where do you put it? lib/ lib/vendor/ assets/js/vendor, assets/css/vendor, assets/*/vendor

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How you keep track of it? Centralized server In git, commit to repo git-submodules

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Messy Desk Not enough space to do work Slow down creative process Hard to collaborate Spend time cleaning desk

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Package Management

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Package Management

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Problem Package management Solution Bower Reason Why use Bower Results How I’ve done so far

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What is Bower?

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Bower A package manager for the web

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What is Bower? Command-line utility Built on Node JS

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Install packages bower install jquery

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Install a version bower install jquery#1.x

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Search packages bower search normalize

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bower.json Manifest ﬁle Use same installation on another machine Collaboration

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bower.json bower init

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bower.json "dependencies": { "jquery": "1.x", "normalize-‐css": "~2.1.3" }

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bower install bootstrap

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Installing dependencies Bower will install the package and its dependencies !"# bootstrap#3.0.0 !"" jquery#2.0.3

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Dependencies Powerful feature Build packages on top of one another No longer have to depend on big frameworks

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Lots of other great features --oﬄine: Oﬄine mode Read the docs: bower.io

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What Bower does Easily gets packages Keeps them organized Manages dependencies

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Problem Solution Reason Results Package management Bower Why use Bower How I’ve done so far

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Why Bower?

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Package managers Volo git-submodules Jam Component Browserify (npm) Ender

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Bower is special Unopinionated Provides no direct way to consume packages Core part of its philosophy

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Consuming packages , SASS or preprocessor RequireJS Grunt Your own build script

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bower list -‐-‐paths { "bootstrap": [ "bower_components/bootstrap/dist/js/ bootstrap.js", "bower_components/bootstrap/dist/css/ bootstrap.css" ], "jquery": "bower_components/jquery/jquery.js", "normalize-‐css": "bower_components/normalize-‐ css/normalize.css" }

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Unopinionated Choosing on behalf of anyone else Don’t lock your users into a methodology

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Using Bower Twitter: Flight Google: Yeoman, Angular jQuery

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Problem Solution Reason Results Package management Bower Unopinionated How I’ve done so far

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Results

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Isotope Masonry

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Same problem with unloaded images

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Masonry ! Isotope !

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Masonry ! Isotope ! images  Loaded images  Loaded images  Loaded

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Masonry ! Isotope ! images  Loaded images  Loaded images  Loaded

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Maintaining one project in three places

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Now with Bower No more committing other projects into yours Keep them separated Bower allows easily add them as dependencies

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Front-end development with dependencies

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Developing with dependencies Removing duplicated code jquery-bridget get-size get-style-property doc-ready eventie EventEmitter

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Each dependency Its own repository Its own issue tracker Its own tests Finer granularity over bigger projects

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For example: masonry#417

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masonry#417 Issue reported in Masonry Actual problem with getSize

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getSize Fix cut new release (v1.1.5) Masonry bower update deploy

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Masonry ! getSize Isotope ! Dragga- billy ...

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Encapsulation Literal naïve deﬁnition: Make capsules Breaking down something large into smaller pieces, easier to swallow

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Encapsulation Like DRY, a principle of good programming Take and apply it project-level

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Encapsulation A new avenue of thinking No longer had to keep mental model of entire library in my head Focus on small libraries with single purpose

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Growing up Growing out of relying on monolithic frameworks Empowering developers to make and distribute their own purpose- built components

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packery-‐docs#1.0.0 $"" classie#1.0.0 $"# doc-‐ready#1.0.2 % !"" eventie#1.0.3 $"# draggabilly#1.0.6 % $"" classie#1.0.0 % $"" eventEmitter#4.2.4 % $"" eventie#1.0.3 % $"# get-‐size#1.1.4 % % !"" get-‐style-‐property#1.0.2 % !"" get-‐style-‐property#1.0.2 $"" eventie#1.0.3 $"" get-‐style-‐property#1.0.2 $"" jquery#1.10.2 $"" jquery-‐ui-‐draggable#1.10.3 $"" normalize-‐css#2.1.3 !"# packery#1.1.2

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Problem Solution Reason Results Package management Bower Unopinionated Grow

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How? How do you hook up Grunt tasks to Bower? How do you split a project into multiple ﬁles? How do you make JS work with both RequireJS and ? How do you create concatenated source ﬁles, for easy ing?