How to check if a number is positive in JavaScript

In this Article we will go through how to check if a number is positive only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const isPositive = number => Math.sign(number) === 1;

isPositive(3);      // true
isPositive(-8);     // false