Find Above The Fold Lazy Loaded Images

// List all lazily loaded images above the fold
// https://webperf-snippets.nucliweb.net
function findAboveTheFoldLazyLoadedImages() {
  const lazy = document.querySelectorAll('[loading="lazy"]');
  let lazyImages = [];
  
  lazy.forEach((tag) => {
    const {x, y} = tag.getBoundingClientRect();
    const position = parseInt(tag.getBoundingClientRect().top);
 
    if(x < window.innerWidth && y < window.innerHeight && x !== 0 && y !== 0) {
      lazyImages = [...lazyImages, tag];
      console.log(tag);
    }
  });
 
  if( lazyImages.length === 0 ) {
    console.log(
      `%c Good job, the site does not have any lazily loaded images in the viewport.`,
      "background: #222; color: lightgreen; padding: 0.5ch",
    );
  }
}
 
findAboveTheFoldLazyLoadedImages();