非同期反復で応答性の高い UI パフォーマンスを実現するにはどうすればよいですか?

<code class="javascript">function processLargeArray(array) {
  var chunk = 100;
  var index = 0;
  function doChunk() {
    var cnt = chunk;
    while (cnt-- && index < array.length) {
      // Process array[index]
      ++index;
    }
    if (index < array.length) {
      setTimeout(doChunk, 1); // Set Timeout for async iteration
    }
  }
  doChunk();
}</code>

<code class="javascript">// Create a Worker script file
// worker.js:
self.addEventListener('message', function(e) {
  // Perform computations
  var result = computeResult(e.data);
  self.postMessage(result);
});

// Create a Worker
var worker = new Worker('worker.js');</code>

<code class="javascript">worker.onmessage = function(e) {
  // Handle post message from worker
  // Update UI or process results
};
worker.postMessage(data); // Send data to worker</code>