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[Spike] Evaluate whether JavaScript RL modules without side effects loaded on startup should be bundled into a single resource
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Description

Currently we load the following non ResourceLoaderImage modules on startup.
Given they are loaded by default it's possible it may be advantageous to package these in a single module (size of startup module/size of resulting JS may be smaller/remove fragmentation of JS files used across pages). We should investigate.

Modules:

  • mobile.betaoptin
  • mobile.editor.api
  • mobile.issues
  • mobile.mainMenu
  • mobile.pagelist.scripts
  • mobile.references
  • mobile.references.gateway
  • mobile.search
  • mobile.search.util
  • mobile.startup
  • mobile.toc
  • mobile.toggle
  • mobile.watchstar

Note that on startup we also load the following modules:

  • skins.minerva.editor
  • skins.minerva.fontchanger
  • skins.minerva.notifications
  • skins.minerva.scripts
  • skins.minerva.scripts.top
  • skins.minerva.tablet.scripts
  • skins.minerva.talk
  • skins.minerva.toggling
  • skins.minerva.watchstar

Questions to answer:

  • Which modules have side effects (e.g. when loaded make changes to the current page)
  • Which modules are used by 2 or more features?
  • What are the advantages to merging modules?
  • Should modules define features or components?
  • What code is used outside MobileFrontend? Is there justification for sharing it via its own ResourceLoader module?
  • Can skins.minerva.scripts.top and skins.minerva.scripts be merged after recent RL changes? Is there any advantage to having them separate?
  • On what pages does the script url differ (e.g. where do we load different JavaScript based on context.. do we only load toggling code on main namespace - if so what disadvantage does that have on client side caching/load time of subsequent page loads?

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Event Timeline

You've hinted at some criteria for evaluating this idea. Could you write 'em out as questions?

Jdlrobson triaged this task as Medium priority.Jan 25 2017, 7:25 PM

Seen, but haven't had time to respond yet. Will soon.

Jdlrobson updated the task description. (Show Details)Jan 27 2017, 5:27 PM
Jdlrobson updated the task description. (Show Details)
ovasileva renamed this task from Evaluate whether JavaScript RL modules without side effects loaded on startup should be bundled into a single resource to [Spike] Evaluate whether JavaScript RL modules without side effects loaded on startup should be bundled into a single resource.Mar 6 2017, 3:42 PM
Restricted Application changed the subtype of this task from "Task" to "Spike". · View Herald TranscriptJun 8 2020, 12:47 PM
Restricted Application added a subscriber: Masumrezarock100. · View Herald Transcript