How to Use the Number Object

Static methods

Number.isFinite()

Determine whether the passed value is a finite number.

Number.isInteger()

Determine whether the passed value is an integer.

Number.isNaN()

Determine whether the passed value is NaN.

Number.isSafeInteger()

Determine whether the passed value is a safe integer (number between -(2⁵³ - 1) and 2⁵³ - 1).

Number.parseFloat()

This is the same as the global parseFloat() function.

Number.parseInt()

This is the same as the global parseInt() function.