Node.js V8 Serializer writeUInt32 Method

The v8.serializer.writeUint32() method is used for writing a raw 32-bit unsigned integer. This function is mainly used inside the custom serializer._writeHostObject().

Syntax

v8.serializer.writeUint32(value)

Parameters

• value − This parameter takes input for the 32-bit integer that will be written inside the internal buffer.

The function does not return anything, instead it writes the passed value to the internal buffer.

Example 1

Create a file with the name "writeUint32.js" and copy the following code snippet. After creating the file, use the command "node writeUint32.js" to run this code.

// 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());

Output

C:\home
ode>> node writeUint32.js
undefined
<Buffer bd 3d>

Example 2

Let’s have a look at one more example

// 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());

Output

C:\home
ode>> node writeUint32.js
<Buffer >
<Buffer bd 3d bd 3d>
Reading the same value after adding to buffer
7869