Node.js – v8.deserializer.readRawBytes() 方法
该V8。deserializer.readRawBytes()方法用于从解串器的内部缓冲区读取原始字节。它基本上返回缓冲区而不反序列化它。输入参数“length”指的是在将原始字节写入同一内部缓冲区时传递的缓冲区长度。
语法
v8.deserializer.readRawBytes(length)
参数
它需要一个参数-
length-此参数接受传递给的缓冲区长度的输入。serializer.writeRawBytes()
示例1
创建一个名为“readRawBytes.js”的文件并复制以下代码片段。创建文件后，使用命令“nodereadRawBytes.js”运行此代码。
//v8.serializer.readRawBytes()演示示例
//导入v8模块
const v8 = require('v8');
//初始化序列化器对象
const serializer = new v8.Serializer();
//将数据写入内部缓冲区
serializer.writeRawBytes(v8.serialize(12345));
//初始化序列化器对象
const deserializer = new
v8.Deserializer(serializer.releaseBuffer());
//从内部缓冲区读取原始字节数据
console.log(deserializer.readRawBytes(6));输出结果C:\home\node>> node readRawBytes.js
示例2
让我们再看一个例子
//v8.serializer.readRawBytes()演示示例
//导入v8模块
const v8 = require('v8');
//初始化序列化器对象
const serializer = new v8.Serializer();
var buffer;
//将数据写入内部缓冲区
function writeRawBytes(data, len) {
serializer.writeRawBytes(v8.serialize(data));
buffer = serializer.releaseBuffer();
console.log("Data written & Retrieved :")
console.log(buffer)
readRawBytes(len);
}
//从内部缓冲区读取原始字节数据
function readRawBytes(len) {
const deserializer = new v8.Deserializer(buffer);
console.log(deserializer.readRawBytes(len));
}
writeRawBytes(9876, 6)
writeRawBytes('Welcome to nhooo', 29)
writeRawBytes(12345, 6)输出结果C:\home\node>> node readRawBytes.js Data written & Retrieved :Data written & Retrieved : Data written & Retrieved :