The v8.Deserializer.readValue() method is an inbuilt application programming interface of the v8.Deserializer module which is used to read the JS value from serialized data as present in a buffer.
Syntax:
v8.Deserializer.readValue();
Parameters: This method does not accept any parameters.
Return Value: This method reads JS value from serialized representation as present in a buffer and returns it on successful reading.
Below examples illustrate the use of v8.Deserializer.readValue() method in Node.js:
Example 1: Filename: index.js// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();
// Calling v8.serializer.writeValue()
console.log(serializer.writeValue("GeeksforGeeks"));
// Calling v8.deserializer.readValue()
const deserializer = new v8.Deserializer(
serializer.releaseBuffer());
console.log(deserializer.readValue());
node index.js
Output:
true GeeksforGeeksExample 2: Filename: index.js
// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();
// Calling v8.serializer.writeValue()
console.log(serializer.writeValue(839475.3495));
buff = serializer.releaseBuffer();
console.log("buffer data is:");
console.log(buff);
// Calling v8.deserializer.readValue()
const deserializer = new v8.Deserializer(buff);
console.log("deserialized data: "
+ deserializer.readValue());
node index.js
Output:
true buffer data is: <Buffer 4e fc a9 f1 b2 66 9e 29 41> deserialized data: 839475.3495
Reference: https://nodejs.org/api/v8.html#v8_deserializer_readvalue
