Node.js v8.Serializer.writeUint32() Method

Last Updated : 22 Jul, 2020

The v8.Serializer.writeUint32() method is an inbuilt application programming interface of the v8.Serializer module, which is used to write the raw 32-bit integer value to the internal buffer. For use inside of custom serializer._writeHostObject().

Syntax:

v8.Serializer.writeUint32( value );

Parameters: This method accepts single parameter as mentioned above and described below.

value: It is a required parameter, refers to a 32-bit integer to be written to the internal buffer.

Return Value: This method does not return anything but writes a raw 32-bit integer value to the internal buffer.

Below examples illustrate the use of v8.Serializer.writeUint32() method in Node.js:

Example 1:

Filename: 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()); 
 
  

Run index.js file using the following command:

node index.js

Output:

Undefined  <Buffer 97 2d>

Example 2:

Filename: 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()); 
 
  

Run index.js file using the following command:

node index.js

Output:

<Buffer >  <Buffer 82 e8 01>  writing two 32 bits number one after another  <Buffer 82 e8 01 82 e8 01>  reading after write  5783

Reference: https://nodejs.org/api/v8.html#v8_serializer_writeuint32_value

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Node.js v8.Serializer.writeUint32() Method

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