Node.js v8.Serializer.writeUint32() 方法
v8.Serializer.writeUint32() 方法是 v8.Serializer 模块的内置应用程序编程接口,用于将原始 32 位整数值写入内部缓冲区。用于自定义 serializer._writeHostObject() 内部。
句法:
v8.Serializer.writeUint32( value );
参数:此方法接受上面提到的和下面描述的单个参数。
- value:必填参数,是指要写入内部缓冲区的32位整数。
返回值:此方法不返回任何内容,而是将原始 32 位整数值写入内部缓冲区。
以下示例说明了在 Node.js 中使用 v8.Serializer.writeUint32() 方法:
示例 1:
文件名:index.js
// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();
// Calling v8.serializer.writeUint32()
// The undefined will be logged in
// console as this function does not
// return anything
console.log(serializer.writeUint32(5783));
console.log(serializer.releaseBuffer());
使用以下命令运行index.js文件:
node index.js
输出:
Undefined
示例 2:
文件名:index.js
// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();
// Calling v8.serializer.writeUint32()
console.log(serializer.releaseBuffer());
serializer.writeUint32(29698);
console.log(serializer.releaseBuffer());
// Writing two 32 bits number one
// after another
console.log("writing two 32 bits "
+ "number one after another");
serializer.writeUint32(29698);
serializer.writeUint32(29698);
console.log(serializer.releaseBuffer());
console.log("reading after write");
// Calling v8.serializer.writeUint32()
serializer.writeUint32(5783);
// Calling v8.deserializer.readUint32()
const deserializer = new
v8.Deserializer(serializer.releaseBuffer());
console.log(deserializer.readUint32());
使用以下命令运行index.js文件:
node index.js
输出:
writing two 32 bits number one after another
reading after write
5783
参考: https://nodejs.org/api/v8.html#v8_serializer_writeuint32_value