There's also a 'is-even' package, which depends on 'is-odd', which in turn, depends on 'is-number'. 'is-odd' is a little bit more involved than 'is-even'. What

There's also a 'is-even' package, which depends on 'is-odd', which in turn, depends on 'is-number'. 'is-odd' is a little bit more involved than 'is-even'. What it does, is: > Returns true if the given number is odd, and is an integer that does not exceed the JavaScript MAXIMUM_SAFE_INTEGER.[0] The full implementation of 'is-number' is as follows: 'use strict'; module.exports = function(num) { if (typeof num === 'number') { return num - num === 0; } if (typeof num === 'string' && num.trim() !== '') { return Number.isFinite ? Number.isFinite(+num) : isFinite(+num); } return false; }; Ridiculous as it may be, my guess is that provides a unified way of number checking while avoiding the pitfalls or crazy consequences which could arise from divide-by-zero[1], which I guess might prevent less-experienced folks from tripping up on some of the Javascript gotchas? I'm not really sure. That being said, I have seen those package dependencies in some serious stuff. Do I agree? I'm not really sure to be honest. Probably not. [0] https://github.com/i-voted-for-trump/is-odd/blob/master/README.md https://github.com/i-voted-for-trump/is-odd/blob/master/READ... [1] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinitehttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe... EDIT: removed redundant sentence