Vue Js File upload size limit validation

<!DOCTYPE html>
<html lang="en">
<head>
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
  <div id="app">
    <h3>Vue Js File upload size limit validation</h3>
    <input type="file" @change="handleFileUpload">
    <p v-if="fileSizeExceeded">File size exceeded the limit of {{ maxFileSize / 1000 }} KB</p>
  </div>
  <script type="module">
    const app = new Vue({
      el: "#app",
      data() {
        return {
          maxFileSize: 5000, // 5Kb
          fileSizeExceeded: false
        };
      },
      methods: {
        handleFileUpload(event) {
          const file = event.target.files[0];
          if (file.size > this.maxFileSize) {
            this.fileSizeExceeded = true;
            return; // do not process the file if it exceeds the size limit
          }
          const reader = new FileReader();
          reader.onloadend = () => {
            this.fileSizeExceeded = false;
            // do something with the file
          };
          reader.readAsArrayBuffer(file);
        }

}
    });
  </script>
  <style scoped>
    #app {
      margin: 20px;
      padding: 20px;
      border: 1px solid #ccc;
    }

h3 {
      font-size: 24px;
      font-weight: bold;
      margin-bottom: 10px;
    }

input[type="file"] {
      margin-bottom: 10px;
    }

p {
      font-size: 16px;
      color: red;
      margin-top: 10px;
    }
  </style>
</body>

</html>