vue.js use cases

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Vue.js Use Cases

Igor Nesterenko

Lead Software Engineer

18.12.2017

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Agenda

1. Why Vue.js ?

2. Good Parts of Vue.js

3. Case 1 Proof of Concept

4. Case 2 Legacy non-SPA

5. Case 3 Legacy SPA

6. Case 4 Diversity in team experience

7. Case 5 From POC to MVP

8. Summary

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Terms

1. SPA - single page application 2. POC - proof of concept3. MVP - minimal viable product4. Progressive Framework - set of libraries developed by the same

team with high attention to backward compatibility and features interoperability

5. JavaScript Fatigue - time spend on configuring js environment

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Why Vue.js?

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Github Stars Over Years

• What concern it helps to solve ?

• Why Vue.js is growing so rapidly?

• Is it not enough React.js ?

• Why Angular in the bottom, however it’s on a top list in hiring ?

Photo is example for

placement and max. size

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Good Parts of Vue.js

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Frameworks Like Top Sport Cars

Any ideas which one

is React, Angular or

Vue.js ?

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Pragmatic Overview

● Overview few most important aspects when choosing any solution.

● What concepts I have to learn to start using solution ?

● What main special traits of Vue.js to compare to React and Angular ?

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Compare by few aspects

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Vue Comparison

● Vue’s Docs is rockstar● Vue is smallest one● Official Router, unlike React● Official Store unlike Angular and React● Official Tests Utils, however in beta● MIT License, however No Big Company behind

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Thing to learn

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Vue Things To Learn

● ES 5 and HTML would be enough

● Even easier that React

● Much more easier the Angular

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Good parts of Vue.js

● Can run in browser natively

● It’s joy to learn

● Vue familiar as for Angular as for React developer

● Official guidelines, tools and plugins to scale application

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Case 1 Proof of Concept

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Case 1 Proof of concept

● You have some idea to validate before presenting to customer

● Customer ask you to make some prototype of new feature or try new approach

● Just few days

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Just include Vue.js in HTML

• no JS fatigue

• clean syntax

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Use components in barebone HTML

• define components as you go

• constraints on child to parent props changes

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Small POC refactoring

const sourceOfTruth = {}

const vmA = new Vue({

data: sourceOfTruth

})

const vmB = new Vue({

data: sourceOfTruth

})

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Case 2 Legacy non-SPA

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Refactor Old-School JSP

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Add Vue Component Directly to JSP

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Separate Components by Files

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Just Compare with Single File Component

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Move user-locales to separate JSP

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Vue Integration

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Refactored JSP

Old JSP

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Case 1 Summary

● courage to learn jsp/asp or php ;-)● pair programming● share best practices of component development● educate non-Components people ● ! be aware of security issues

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Case 1 Summary

● no additional tooling

● Single File Component like dev experience for free

● no REST API pre-requirements● more clean and maintainable code

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Case 3 Legacy SPA

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Case 3 Legacy SPA

● Can’t evolve/maintain, outdated stac

● Example: Backbone, Marionet, AngularJS, RequireJs

● Usual backbone problems: component composition and state management

● Danger ! in some cases the only way to rewrite app from scratch

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Refactor Backbone App

Backbone.View

Backbone.Model

DOMTemplateConvert Data to String Direct DOM Manipulations

Listen for changes and

change data through

methods

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Build Backbone View adapter for Vue

Backbone.View

BackboneVueAdapter

Override Event Delegation

and use component instead

of template

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Build Backbone View adapter for Vue

BackboneVueAdapter

Backbone.ModelDOM

VueComponent

Pass Props to Update Component

Direct DOM Manipulations

Reactive

Updates

Listen for changes and

change data through

methods

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Build Backbone View adapter for Vue

BackboneVueAdapter

Backbone.ModelDOM

VueComponent

Listen for changes and

change data through

methods

Reactive

Updates

Pass Props and Listen for

Events

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Leave BackboneVueAdapter for Smart Components

BackboneVueAdapter

Backbone.Model

VueComponent

Listen for changes and

modify data through

methods

VueComponent VueComponent

Pass Props and Listen for

Events

Pass Props and Listen for

Events

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BackboneVueAdapter Example

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BackboneVueAdapter Usage

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Rewrite Templates to Components

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Rewrite Templates to Components

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Case 3 Legacy SPA - Summary

● No additional tools required● Vue allows to decouple Backbone.View from DOM● Limit places with data manipulation● Allows to refactor app step by step into component

architecture● ! Don’t modify the same DOM attributes

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Case 4 Diversity in Team Experience

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Case 4 Diversity in Team Experience

● good for newbie

● familiar for Angular people, because templates syntax

● familiar for React people, because only components philosophy

● as result it’s a good tool for team with a big diversity in experience

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Case 5 From POC to MVP

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Case 5 From POC to MVP

●Use vue-cli to checkout project templates

●Switch to Single File Components

●State Management

●Unit Testing and e2e

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Single File Component

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Try Vuex

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Structure your App

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Testing

● vue-test-utils for components

● nightwatch for e2e for critical use cases

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Summary

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Summary

● jQuery-like first user experience

● allows you to go in unfriendly environments

● all you need for complex UI solutions

●may helps in dealing with team diversity

●provide a progressive framework, so you can evolve your POC in scalable app

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Thank you