function isNumber
Usage in Deno
import { isNumber } from "node:util";
isNumber(object: unknown): object is number
Deprecated
Since v4.0.0 - Use typeof value === 'number' instead.
Returns true if the given object is a Number. Otherwise, returns false.
const util = require('node:util'); util.isNumber(false); // Returns: false util.isNumber(Infinity); // Returns: true util.isNumber(0); // Returns: true util.isNumber(NaN); // Returns: true
object is number