Drupal 8: Working with javascript/jQuery.

JavaScript API overview
https://www.drupal.org/docs/drupal-apis/javascript-api/javascript-api-o…
How to include jQuery Once on your Drupal 8 pages
https://medium.com/drupal-stories/how-to-include-jquery-once-on-your-dr…
Understanding JavaScript behaviors in Drupal
https://www.lullabot.com/articles/understanding-javascript-behaviors-in…

ps: Remember that $(function () is a shorthand for $(document).ready()

js jquery

module development

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