JavaScript(JS) number method - isinteger

The Number.isInteger method in JavaScript is a static method that checks whether a given value is an integer or not. It returns true if the value is an integer, and false otherwise.

Here's an example usage:

console.log(Number.isInteger(5)); // true
console.log(Number.isInteger(5.0)); // true
console.log(Number.isInteger(5.1)); // false
console.log(Number.isInteger("5")); // false

In the above example, the Number.isInteger method is used to check whether the given values are integers or not. The first two calls return true because 5 and 5.0 are both integers. The third call returns false because 5.1 is not an integer. The fourth call returns false because "5" is a string and not a number.