Function isFinite

Alias

isFinite(value): value is number

Checks if value is a finite number.

Parameters

value: unknown
The value to check.

Returns value is number

Returns true if value is a finite number, false otherwise.

Example

const value1 = 100;
const value2 = Infinity;
const value3 = '100';

console.log(isFinite(value1)); // true
console.log(isFinite(value2)); // false
console.log(isFinite(value3)); // false