Web Frameworks

A web framework (WF) or web application framework (WAF) is a software framework that is designed to support the development of web applications including web services, web resources, and web APIs.

Today, employers of front-end web developers typically demand knowledge of a web framework as a pre-requisite for the job.

Framework % websites using
jQuery 43.3%
React 35.9%
Angular 25.1%
Vue 17.3%
Angular.js 16.1%
https://www.statista.com/statistics/1124699/worldwide-developer-survey-most-used-frameworks-web/

(With due respect to the original writers, it is pointless to make changes to good writing. Some information in this section is adopted directly from the official websites.)