Today Udacity is announcing its latest addition to the lineup — React. React, a JavaScript library for front-end development, has become insanely popular in recent months.

Udacity is the online education startup helmed by Sebastian Thrun, a former Google employee who actually helped kick off that company’s self-driving car program before leaving to found his own ...

Udacity, which was founded as the outgrowth of free computer science classes offered in 2011 through Stanford University, said its free courses are part of its “Nanodegree” credential program.