Use isFinite function to check if a number is finit in JavaScript

Description

The following code shows how to use isFinite function to check if a number is finit.

Example

if (isFinite(Number.NEGATIVE_INFINITY)) {
   console.log("Number is finite.");
} else {/*w ww.  ja v a 2  s .c om*/
   console.log("Number is infinite.");
}

The code above generates the following result.