How to use the Number.isInteger() Method In Javascript
The Number.isInteger() Method checks if the given number is an integer or not. It returns true if the number is an integer, and false if it’s a float or not a number at all.
Syntax
Number.isInteger(number);
Example: This example uses the Number.isInteger() Method to check the Number.
Javascript
const inputNumber = 42; const isInteger = Number.isInteger(inputNumber); console.log( `Is ${inputNumber} an integer? ${isInteger}` ); |
Output
Is 42 an integer? true
JavaScript Program to Check if a Number is Float or Integer
In this article, we will see how to check whether a number is a float or an integer in JavaScript. A float is a number with a decimal point, while an integer is a whole number or a natural number without having a decimal point.
Table of Content
- Using the Number.isInteger() Method
- Using the Modulus Operator (%)
- Using Regular Expressions
We will explore every approach to Check if a Number is a Float or Integer, along with understanding their basic implementations.