js 二进制转unicode

// 假设这是你的二进制数据（十六进制字符串）
let hexString = "48656c6c6f20576f726c64"; // "Hello World" 的十六进制表示

// 将十六进制字符串转换为ArrayBuffer
function hexToArrayBuffer(hex) {
  let buffer = new ArrayBuffer(hex.length / 2);
  let view = new Uint8Array(buffer);
  for (let i = 0; i < hex.length; i += 2) {
    view[i / 2] = parseInt(hex.substr(i, 2), 16);
  }
  return buffer;
}

// 使用TextDecoder解码ArrayBuffer为Unicode字符串
function decodeArrayBuffer(buffer) {
  let decoder = new TextDecoder('utf-8');
  return decoder.decode(buffer);
}

// 执行转换
let arrayBuffer = hexToArrayBuffer(hexString);
let unicodeString = decodeArrayBuffer(arrayBuffer);

console.log(unicodeString); // 输出: Hello World