isFinite (Lodash Compatibility)

Use Number.isFinite

This isFinite function operates slowly due to additional type checking overhead.

Instead, use the faster and modern Number.isFinite.

Checks if a value is a finite number.

const result = isFinite(value);

Reference

isFinite(value)

Use isFinite when you need to check if a given value is a finite number. This function also works as a type guard in TypeScript, narrowing the type of the value to number.

import { isFinite } from 'es-toolkit/compat';

// Finite numbers
isFinite(100); // true
isFinite(-50); // true
isFinite(3.14); // true
isFinite(0); // true

// Infinity is false
isFinite(Infinity); // false
isFinite(-Infinity); // false

// NaN is also false
isFinite(NaN); // false

// Other types are also false
isFinite('100'); // false
isFinite([]); // false
isFinite({}); // false
isFinite(null); // false
isFinite(undefined); // false

Parameters

• value (any): The value to check.

Returns

(boolean): Returns true if the value is a finite number, otherwise false.