ManasDroid · JeevantheDev · Oct 10, 2021
diff --git a/star-rating/app.js b/star-rating/app.js
@@ -0,0 +1,86 @@
+const makeStarRating = function (noOfStars = 5) {
+  let rating = 0;
+  let starComponent;
+
+  function changeRating(newRating) {
+    rating = newRating;
+  }
+  function getStarComponent() {
+    if (!starComponent) {
+      starComponent = document.createElement('ul');
+      starComponent.className = 'stcomp';
+      for (let i = 0; i < noOfStars; i++) {
+        const li = document.createElement('li');
+        li.setAttribute('data-rating', i + 1);
+        li.className = 'star';
+        if (i === 0) li.tabIndex = 0;
+        starComponent.append(li);
+      }
+      starComponent.addEventListener('mouseover', onMouseOver);
+      starComponent.addEventListener('mouseleave', onMouseLeave);
+      starComponent.addEventListener('click', onMouseClick);
+    }
+    return starComponent;
+  }
+  function renderChanges(rating) {
+    for (let index = 0; index < rating; index++) {
+      starComponent.children[index].classList.add('star-filled');
+    }
+    for (let index = rating; index < noOfStars; index++) {
+      starComponent.children[index].classList.remove('star-filled');
+    }
+  }
+
+  function onMouseOver(e) {
+    let isStar = e.target.classList.contains('star');
+    if (isStar) {
+      const { rating } = e.target.dataset;
+      renderChanges(rating);
+    }
+  }
+
+  function onMouseLeave(e) {
+    renderChanges(rating);
+  }
+
+  function onMouseClick(e) {
+    let star = e.target ?? e;
+    let isStar = star.classList.contains('star');
+    if (isStar) {
+      activate(star);
+      let { rating } = star.dataset;
+      if (e.key !== 'Tab' && rating === getRating()) {
+        rating = 0;
+        resetTabIndex();
+        starComponent.firstElementChild.tabIndex = 0;
+      }
+      changeRating(rating);
+      renderChanges(rating);
+    }
+  }
+
+  function activate(element) {
+    resetTabIndex();
+    element.tabIndex = 0;
+    element.focus();
+  }
+
+  function resetTabIndex() {
+    starComponent.childNodes.forEach((star) => {
+      star.tabIndex = -1;
+    });
+  }
+
+  function getRating() {
+    return rating;
+  }
+
+  return { getStarComponent };
+};
+
+const ratingModule1 = makeStarRating(5);
+
+const starComponent1 = ratingModule1.getStarComponent();
+const container = document.querySelector('main');
+
+container.append(starComponent1);
diff --git a/star-rating/index.html b/star-rating/index.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link rel="stylesheet" href="style.css" />
+    <title>Star Rating</title>
+  </head>
+  <body>
+    <main></main>
+    <script src="./app.js"></script>
+  </body>
+</html>
diff --git a/star-rating/style.css b/star-rating/style.css
@@ -0,0 +1,32 @@
+.star {
+  background: lightgrey;
+  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
+  display: inline-block;
+  height: 50px;
+  width: 50px;
+  margin-left: 2px;
+  transition: transform 0.1s;
+}
+
+.star:hover {
+  transform: scale(1.2);
+}
+.star:focus {
+  transform: scale(1.2);
+}
+.stcomp {
+  cursor: pointer;
+  display: flex;
+  list-style-type: none;
+}
+
+main {
+  display: flex;
+  flex-direction: column;
+  height: 100vh;
+  justify-content: center;
+  align-items: center;
+}
+.star-filled {
+  background: orange;
+}