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Legal StudiesNode.js – v8.serializer.writeUint32() 方法
v8.serializer.writeUint32() 方法用于写入一个未经处理的 32 位无符号整数。此函数主要在自定义的 serializer._writeHostObject() 中使用。
语法
v8.serializer.writeUint32(value)
参数
- value − 此参数输入需要写入内部缓冲区的 32 位整数。
此函数不返回任何内容，而是将传递的值写入内部缓冲区。
示例 1
创建一个名为 "writeUint32.js" 的文件，并复制以下代码段。创建文件后，使用 "node writeUint32.js" 命令运行此代码。
// v8.deserialize() Demo Example
// Importing the v8 module
const v8 = require('v8');
// Initializing the v8 Serializer object
const serializer = new v8.Serializer();
// Adding 32-bit integer to internal buffer.
// This will return undefined since it only adds to buffer
console.log(serializer.writeUint32(7869));
// Releasing and printing the internal buffer
console.log(serializer.releaseBuffer());输出
C:\home
ode>> node writeUint32.js undefined <Buffer bd 3d>
示例 2
我们再来看一个示例
// v8.serializer.writeUint32() Demo Example
// Importing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();
// Calling v8.serializer.writeUint32()
console.log(serializer.releaseBuffer());
// Writing the same 32-bit integer twice
serializer.writeUint32(7869);
serializer.writeUint32(7869);
// Adding the above value to internal buffer
console.log(serializer.releaseBuffer());
// Writing the same 32-bit integer again
serializer.writeUint32(7869);
// console.log(serializer.releaseBuffer());
console.log("Reading the same value after adding to buffer");
// Calling v8.deserializer.readUint32()
const deserializer = new
v8.Deserializer(serializer.releaseBuffer());
// Deserializing the internal buffer
console.log(deserializer.readUint32());输出
C:\home
ode>> node writeUint32.js <Buffer > <Buffer bd 3d bd 3d> Reading the same value after adding to buffer 7869
更新于： 17-8-2021
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