The once feature in Drupal was originally implemented via jQuery.once. A new, jQuery-independent version has since been developed and is distributed as the @drupal/once npm package. This version supports the same functionality using vanilla JavaScript and improves performance and modern compatibility. However, many parts of core and contrib still rely on jQuery.once, which keeps an unnecessary dependency on jQuery. To modernize Drupal’s JavaScript ecosystem, this dependency should be removed.
jQuery.once.once() from @drupal/once and confirm it works as expected.jQuery.once in core to use the @drupal/once library.core/jquery.once library from core.jQuery.once.once() functions:
once()once.filter()once.remove()once.find()core/jquery.once from core.libraries.yml.None.
core/jquery.once library.once() is used as the standard mechanism for once functionality.jQuery.once calls work when once() is also used.None.
Active
2.0
Code
Issue #3527414: jquery once is deprecated
I have tested this and everything seems to work well for me.Merging it.