Test if a number is a triangular number
npm install is-triangular> Test if a number is a triangular number
Reference: Fastest method to define whether a number is a triangular number
``
$ npm install --save is-triangular
`js
var isTriangular = require('is-triangular');
isTriangular(1);
//=> true
isTriangular(2);
//=> false
isTriangular(3);
//=> true
isTriangular(4);
//=> false
isTriangular(10);
//=> true
``
MIT © Leonardo Borges Avelino