NodeJS v8.deserializer.readUnit32() Method

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The NodeJS v8.deserializer.readUnit32() method of class v8.deserializer is used to read a raw 32-bit unsigned integer and return it.

Unit32 is a 32-bit unsigned integer that has a minimum value of 0 and a maximum value of 4,294,967,295 (inclusive).

This method is mainly used inside the custom deserializer._readHostObject() that is used to read some kind of host object.

Syntax

Following is the syntax of the NodeJS v8.deserializer.readUnit32() method −

v8.deserializer.readUnit32()

Parameters

This method does not accept any parameters.

Return Value

This method reads and returns the raw 32-bit unsigned integer value from the buffer.

Example

In the example below, we are trying to write a raw 32-bit unsigned integer to the internal buffer using the v8.serializer.writeUnit32() method. Then we are trying to read that raw 32-bit unsigned integer present in the internal buffer using the v8.deserializer.readUnit32() method.

const v8 = require('v8');
const serializer = new v8.Serializer();
  
// Calling v8.serializer.writeUint32() 
serializer.writeUint32(98764567);
  
// Calling v8.deserializer.readUint32() 
const deserializer = new v8.Deserializer(serializer.releaseBuffer());

console.log(deserializer.readUint32());

Output

If we compile and run the above code, the output is as follows.

98764567

Example

Following is another example of readUnit32() method of class v8.deserializer.

const v8 = require('v8');
const serializer = new v8.Serializer();  
console.log(serializer.releaseBuffer());
serializer.writeUint32(876543);
buffer = serializer.releaseBuffer();
console.log("Internal Buffer data is:");
console.log(buffer);
const deserializer = new v8.Deserializer(buffer);
console.log("After deserializing, the data: ");
console.log(deserializer.readUint32());

Output

<Buffer >
Internal Buffer data is:
<Buffer ff bf 35>
After deserializing, the data: 
876543