emailjs is a javascript library that allows you to send emails directly from your front-end code, without the need for a server-side implementation. it provides a simple and convenient way to send emails using an api. with emailjs, you can create email templates, customize them with dynamic data from your front-end code, and send the emails using an api key provided by emailjs. the library supports a variety of email services, including gmail, yahoo, and outlook, among others. to use emailjs, you need to sign up for a free account on their website and obtain an api key. once you have the api key, you can install the library using npm or include it in your html file using a script tag.

a progressive javascript framework for building user interfaces

day.js is a minimalist javascript library that parses, validates, manipulates, and displays dates and times for modern browsers with a largely moment.js-compatible api. if you use moment.js, you already know how to use day.js.