JS LIBRARIES


How to & How not to






Maël Nison, @arcanis
 

DEPENDENCY MANAGEMENT


  • Require.js (Almond ?)

  • Browserify

  • CommonJS-everywhere

  • Cat *.js > output.js

  • No dependencies !

CONCEPTION


  • Could worth a talk by itself

  • Where does the user expects to find components ?

  • Always consider the Demeter Law

LIBRARY API


  • "Is it pretty" is a bad question

  • "Is it flexible enough" is a good one

  • Will your users understand ?

  • Don't assume anything

MAGIC FEATURES

  • Usually nice, and always fun to code ... but beware

  • Two kind of magic : implementation details and Waza


Some no-no :

  • Checking callback argument count

  • Defining getters with side-effects

  • ... Anything which cannot be deduced

CODING STYLE


  • More important that you could think

  • The best JS documentation is the source code

  • You no longer write for your eyes

  • Be consistent although flexible : readability comes first

FRENCH ONLY



Take it with

a pinch of salt !



(also, my new side-project)

             
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