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Node.js v8.Serializer.writeValue() Method

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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




// 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




// 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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Last Updated : 28 Jul, 2020
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