30, 2020. The skills are ranked from No. 15 to No. 1 based on the demand for each, according to Upwork. No. 15: React A React developer uses the open-source React JavaScript (JS) library to build ...

Since its creation in 1995, JavaScript has pretty much taken over the web. Not to be confused with Java, JavaScript is the glue between HTML, CSS and your ... like Node.js, React, Ionic, Electron ...

Among the JavaScript skills ... jQuery has fallen 30% since 2015, while Ajax is down even more -- 54%. Backbone.js has also seen its appearance in job postings drop significantly since 2014 ...