Fetch流式获取数据_fetch接收文本流式数据为什么获取的文本是好几条合在一起的

TextDecoder()是JavaScript的一个内置对象，它用于将字节数组（如ArrayBuffer或TypedArray）解码为字符串。它可以处理各种字符编码，例如UTF-8、UTF-16等。
const byteArray = new Uint8Array([72, 101, 108, 108, 111]); // 字节数组
const decodedString = decoder.decode(byteArray);
console.log(decodedString); // "Hello"
 async send() {
      this.$refs["code"].innerText = "";
      // 创建解码对象
      let td = new TextDecoder();
      let ai = await fetch(
        "https://api.binjie.fun/api/generateStream?refer__1360=n4+xgDBD9DyDuDmxWweiqGNDQH4dLmieuz4PD",
        {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify({
            network: true,
            prompt: this.textarea,
            stream: false,
            system: "",
            userId: "#/chat/1706583670768",
            withoutContext: false,
          }),
        }
      );
      // 获取读取可读流
      let reader = ai.body.getReader();
      while (1) {
        let res = await reader.read();
        let str = td.decode(res.value);
        if (res.done) {
          break;
        }
        this.$refs["code"].innerText += str;
      }
    },