BBUG August 2017 {Events}

BBUGAugust2017, 12 August 2017

#HASHTAGUNSET on Twitter, identi.ca, Live Cast, TwitterStreamGraphs, Collecta, flickr

Attended activities

All by Stéphane Huart

• JavaScript Presentation
• ThreeJS exercise

JavaScript Presentation

• Wikipedia:Scope (computer science)
• Wikipedia:Variable shadowing
• focus on prototype, cf e.g. https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/Object_prototypes
  • myObject.__proto__/Object.getPrototypeOf(myObject) all the way up null to explore inheritance
  • var persoA = Object.create(knight) to showcase inheritance with shadowing
  • see also VirtualReality#WithPrototype on exploring Object.getOwnPropertyNames(AFRAME)
• function Graph(){this.vertices = []; }; var g = new Graph() to show another way and explain this
• class GraphAlt{constructor(){ this.vertices = []; } } ; var galt = new GraphAlt() as newer alternative
• importance of getter/setter for function scope vs current instance
  • worth the overhead
• Object.assign() cf https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
• support
  • https://caniuse.com/?comment=#feat=es6-module
  • https://caniuse.com/?comment=#feat=es6-class
• see also JavaScript

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ThreeJS exercise

• https://glitch.com/edit/#!/bbug-web
  • imported html5-boilerplate
  • added threejs from CDN
• remarks

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Overall remarks and conclusions

• meet him
• could be improved by doing that
• see also that other event

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Other reviews or coverage

• here

To do

1. improve Template
2. add map data (:ola-point lat= lon= text='':)