Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Node.js – util.types.isBoxedPrimitive() Method
The util.types.isBoxedPrimitive() method checks whether the passed value is a built-in Primitive object or not. If the above condition is satisfied, it returns True, else False. Primitive object includes new Boolean(), new String() or Object(Symbol()).
Syntax
util.types.isBoxedPrimitive(value)
Parameters
- value − This input value takes input for the required parameter and checks if it's a Float32-Array instance or not.
It returns True or False based upon the input value passed.
Example 1
Create a file with the name "isBoxedPrimitive.js" and copy the following code snippet. After creating the file, use the command "node isBoxedPrimitive.js" to run this code.
// util.types.isBoxedPrimitive() Demo Example
// Importing the util module
const util = require('util');
// Passing boolean as variable
console.log("1." + util.types.isBoxedPrimitive(false));
// Passing boolean value as primitive object
console.log("2." + util.types.isBoxedPrimitive(new Boolean(false)));
// Passing 'foo' as a value
console.log("3." + util.types.isBoxedPrimitive(Symbol('foo')));
// passing 'foo' as an object
console.log("4." + util.types.isBoxedPrimitive(Object(Symbol('foo'))));Output
C:\home
ode>> node isBoxedPrimitive.js 1.false 2.true 3.false 4.true
Example 2
// util.types.isFloat32Array() Demo Example
// Importing the util module
const util = require('util');
var float32 = new Float32Array(2);
float32[0] = 21;
var stringObj = new String('Welcome to Tutorials Point')
var bigInt = Object(BigInt(5));
// Passing float32 object as input
console.log("1." + util.types.isBoxedPrimitive(float32));
// Passing String object
console.log("2." + util.types.isBoxedPrimitive(stringObj));
// Passing a BigInt object
console.log("3." + util.types.isBoxedPrimitive(bigInt));Output
C:\home
ode>> node isBoxedPrimitive.js 1.false 2.true 3.true
Updated on: 17-Aug-2021
32 Views
Advertisements