Playlists, Play Next, Code Refactor

src/scripts/util.js

@@ -0,0 +1,33 @@
+export function usePrefs(key) {
+	if (localStorage) {
+		if (localStorage.get(key)) return true
+		else return false
+	} else return false
+}
+
+export function useLazyLoad() {
+  let lazyElems;
+
+  if ('IntersectionObserver' in window) {
+    lazyElems = document.querySelectorAll('.bg-img:not(.lazy)');
+
+    let imgObs = new IntersectionObserver((elems, obs) => {
+      elems.forEach((elem) => {
+        setTimeout(() => {
+          if (elem.isIntersecting) {
+            let ele = elem.target;
+
+            ele.classList.add('lazy');
+            imgObs.unobserve(ele);
+          }
+        }, 20);
+      });
+    });
+
+    lazyElems.forEach((img) => {
+      imgObs.observe(img);
+    });
+  } else {
+    console.log('Failed');
+  }
+}