is-finite-x/src/is-finite-x.js

ES6-compliant shim for Number.isFinite.

import numberIsNaN from 'is-nan-x';
import INFINITY from 'infinity-x';

/**
 * This method determines whether the passed value is a finite number.
 *
 * @param {*} [number] - The value to be tested for finiteness.
 * @returns {boolean} A Boolean indicating whether or not the given value is a finite number.
 */
const isFinite = function isFinite(number) {
  return typeof number === 'number' && numberIsNaN(number) === false && number !== INFINITY && number !== -INFINITY;
};

export default isFinite;