Easy way to use lazy image_tag in Ruby on Rails

readme.md

Define asset_tag_helper.rb in your rails_root/config/.
When you use image_tag helper in view files, it will be added loading="lazy" automatically.
If you don't want to use lazy loading, add option loading: "eager" or use rails_image_tag.

ref:

• : The Image Embed element - HTML: HyperText Markup Language | MDN
• Can I use... Support tables for HTML5, CSS3, etc

asset_tag_helper.rb

module ActionView::Helpers::AssetTagHelper
  alias rails_image_tag image_tag
  def image_tag (source, options = {})
    options[:loading] ||= 'lazy'
    rails_image_tag(source, options)
  end
end