everyutil/number/isTriangularNumber.d.ts

A comprehensive library of lightweight, reusable utility functions for JavaScript and TypeScript, designed to streamline common programming tasks such as string manipulation, array processing, date handling, and more.

/**
 * Checks if a number is a triangular number (1, 3, 6, 10, ...).
 * @author @dailker
 * @param {number} n - The number to check.
 * @returns {boolean} True if n is triangular, false otherwise.
 */
export declare function isTriangularNumber(n: number): boolean;