payload-is/src/number.ts

A comprehensive TypeScript/JavaScript type checking library providing functions to check data types, collections, primitives, and built-in objects

// number

import { getTag } from "./type.ts";

export function isNumber(payload: unknown): payload is number {
  return typeof payload === "number";
}

export function isValidNumber(payload: unknown): payload is number {
  return isNumber(payload) && !isNaN(payload);
}

export function isInvalidNumber(payload: unknown): payload is number {
  return isNumber(payload) && isNaN(payload);
}

export function isNumberObject(payload: unknown): payload is Number {
  return typeof payload === "object" && getTag(payload) === "Number";
}

// isNumberArray
export function isNumberArray(payload: unknown): payload is number[] {
  return Array.isArray(payload) && payload.every((item) => isNumber(item));
}