Node.js util.types.isNumberObject() Method
Last Updated :
13 Oct, 2021
The util.types.isNumberObject() method of util module is primarily designed to support the needs of Node.js own Internal APIs. It is used to check whether the passed value is a Number object or not.
Syntax
util.types.isNumberObject( value )
Parameters: This method accepts a single parameter value which holds any number i.e. instance of any module.
Return value: This method returns a Boolean value i.e true if the passed value is a Number object otherwise returns false.
Below examples illustrate the use of util.types.isNumberObject() method in Node.js:
Example 1:
const util = require( 'util' );
console.log(util.types.isNumberObject(0));
console.log(util.types.isNumberObject( new Number(0)));
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Output:
false
true
Example 2:
const util = require( 'util' );
console.log(util.types.isNumberObject(100));
console.log(util.types.isNumberObject( new Number(12345678)));
console.log(util.types.isNumberObject(1.8));
console.log(util.types.isNumberObject( new Number(1.8)));
console.log(util.types.isNumberObject(Number( '1.8' )));
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Output:
false
true
false
true
false
Reference: https://nodejs.org/api/util.html#util_util_types_isnumberobject_value
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