Node.js v8.Serializer.writeValue() Method

Last Updated : 28 Jul, 2020

The v8.Serializer.writeValue() method is an inbuilt application programming interface of the v8.Serializer module which is used to write the serialized data of JS value to the internal buffer.

Syntax:
v8.Serializer.writeValue(Value);

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

  • value: This is a required parameter, refers to any type of data to be serialized and written to the internal buffer.

Return Value: This method writes serialized representation of JS value to the internal buffer and returns true on successfully writing.

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

Example 1: Filename: index.js javascript
// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();

// Calling v8.serializer.writeHeader() 
console.log(serializer.writeValue("geeksforgeeks"));
Run index.js file using the following command:
node index.js
Output:
true
Example 2: Filename: index.js javascript
// Accessing v8 module
const v8 = require('v8');
const serializer = new v8.Serializer();

// Calling v8.serializer.writeValue() 
console.log(serializer.releaseBuffer());
console.log(serializer.writeValue("geeksforgeeks"));
console.log(serializer.releaseBuffer());
console.log(serializer.writeValue(9314.94));
console.log(serializer.releaseBuffer());
Run index.js file using the following command:
node index.js
Output:
<Buffer >
true
<Buffer 22 0d 67 65 65 6b 73 66 6f 72 67 65 65 6b 73>
true
<Buffer 4e 1f 85 eb 51 78 31 c2 40>
Reference: https://nodejs.org/api/v8.html#v8_serializer_writevalue_value
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