@outbook/numbers

Checks if a number is even, odd or integer.

Installation

npm install @outbook/numbers

Usage

import { isEven, isOdd, isInteger, isHexadecimal } from '@outbook/numbers';

// isEven
console.log(isEven(2)); // true
console.log(isEven(3)); // false
try {
  isEven(3.14);
} catch (err) {
  console.log(err.message); // 'Argument must be an integer!'
}

// isOdd
console.log(isOdd(3)); // true
console.log(isOdd(2)); // false
try {
  isOdd(3.14);
} catch (err) {
  console.log(err.message); // 'Argument must be an integer!'
}

// isInteger
console.log(isInteger(3)); // true
console.log(isInteger(3.14)); // false

// isHexadecimal
isHexadecimal('#FFF'); // true
isHexadecimal('#FFFF'); // false