通过websockets发送大型数据包

const data = /* 大型数据 */;
const chunkSize = /* 每个数据包的大小 */;
const totalChunks = Math.ceil(data.length / chunkSize);

for (let i = 0; i < totalChunks; i++) {
  const chunk = data.slice(i * chunkSize, (i + 1) * chunkSize);
  const message = {
    id: i,
    totalChunks: totalChunks,
    payload: chunk
  };
  websocket.send(JSON.stringify(message));
}

let receivedChunks = [];

websocket.onmessage = (event) => {
  const message = JSON.parse(event.data);
  receivedChunks[message.id] = message.payload;

  if (receivedChunks.length === message.totalChunks) {
    const data = new Uint8Array(receivedChunks.reduce((acc, curr) => acc + curr.length, 0));
    let offset = 0;
    receivedChunks.forEach((chunk) => {
      data.set(chunk, offset);
      offset += chunk.length;
    });
    // 处理重组后的数据
  }
};