The v8.Deserializer.readRawBytes() method is an inbuilt application programming interface of the v8.Deserializer module which is used to read a raw buffer data from deserializer's internal buffer of the given length. For use inside of custom Deserializer._readHostObject().
Syntax:
v8.Deserializer.readRawBytes( length );
Parameters: This method accepts single parameter as mentioned above and described below:
- length: It is a required parameter, refers to the length of the buffer to be read from deserializer's internal buffer.
Return Value: This method reads raw buffer data from deserializer's internal buffer and returns it as buffered data.
Below examples illustrate the use of v8.Deserializer.readRawBytes() method in Node.js:
Example 1: Filename: index.js// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();
// Calling v8.serializer.writeRawBytes()
serializer.writeRawBytes(v8.serialize(5783));
buff = serializer.releaseBuffer();
console.log(buff);
// Calling v8.deserializer.readRawBytes()
const deserializer = new v8.Deserializer(buff);
console.log(deserializer.readRawBytes(5));
node index.js
Output:
<Buffer ff 0d 49 ae 5a> <Buffer ff 0d 49 ae 5a>Example 2: Filename: index.js
// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();
// Calling v8.serializer.writeRawBytes()
serializer.writeRawBytes(v8.serialize(29698));
serializer.writeRawBytes(v8.serialize("geeksforgeeks"));
serializer.writeRawBytes(v8.serialize(29698));
buff = serializer.releaseBuffer();
console.log(buff);
// Calling v8.deserializer.readRawBytes()
const deserializer = new v8.Deserializer(buff);
console.log(deserializer.readRawBytes(6));
console.log(deserializer.readRawBytes(17));
console.log(deserializer.readRawBytes(6));
node index.js
Output:
<Buffer ff 0d 49 84 d0 03 ff 0d 22 0d 67 65 65 6b 73 66 6f 72 67 65 65 6b 73 ff 0d 49 84 d0 03> <Buffer ff 0d 49 84 d0 03> <Buffer ff 0d 22 0d 67 65 65 6b 73 66 6f 72 67 65 65 6b 73> <Buffer ff 0d 49 84 d0 03>
Reference: https://nodejs.org/api/v8.html#v8_deserializer_readrawbytes_length
