Issue #3174884 by raman.b, alexpott, lauriii, zrpnr, nod_: Update yarn dependencies for Drupal 9.1.0

Issue #2981652 by ApacheEx, corbacho, drpal, dawehner, xjm, alexpott, lauriii: Format core JavaScript using recently add Prettier

Issue #2548195 by nod_, JohnAlbin, madhavvyas, sriharsha.uppuluri: Only use single quotes in JavaScript and update .eslintrc

Issue #1996238 by sun, nod_, damiankloip, Wim Leers, longwave, alexpott, Xano, mdrummond, Mark Carver, Jeff Burnz, highrockmedia, joelpittet, et al: Replace hook_library_info() by *.libraries.yml file.

Issue #1913510 by erich_s, jibran, scresante, nod_, mitron: Core Javascript Files Not Using Standard Indentation.

Issue #1419968 by nod_, cosmicdreams, droplet, tim.plunkett: Replace $('selector', domelement) with $(domelement).find('selector').

Nate Lampton authored 13 years ago and catch committed 13 years ago

Issue #22336 by quicksketch, scor, boombatower, and rfay. Move all core Drupal files under a core subdirectory.

- Patch #444344 by kkaefer, sun, Rob Loach: this change introduces a jQuery .once() method which streamlines the way behavior functions work. Previously, we had to manually ensure that an element is only initialized once. Usually, this happens by adding classes and selecting only those elements which do not have that class. However, this process can be separated out into a jQuery ‘filtering’ function which does all the grunt work.

#125030 by kkaefer, quicksketch, dvessel, Steven, and John Resig: Allow compatibility with other JavaScript libraries.

#184867 by deekayen, catch and keith.smith: fix some spelling errors in our source code and messages printed

#127539: progressive operation support, refactoring update.php code to a generic batch API to support runnning operations in multiple HTTP requests
  - update.php is already on the batch API
  - node access rebuilding is in the works
  - automatic locale importing is in the works

 Thanks to Yves Chedemois (yched) for the good code quality, very wide awareness of issues related to batches,
 and the fantastic turnaround times. Hats off.

- JS Updater: stop monitoring progress when 100% is reached (can lead to infinite refresh loops in Safari)