es-toolkit/dist/predicate/isNumber.js

A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

'use strict';

Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });

function isNumber(x) {
    return typeof x === 'number' || x instanceof Number;
}

exports.isNumber = isNumber;