Indeed allows you to search for terms historically (like a Google trends for jobs): http://www.indeed.com/jobtrends?q=angularjs%2C+angular%2C+react.js%2C+reactj

Indeed allows you to search for terms historically (like a Google trends for jobs): http://www.indeed.com/jobtrends?q=angularjs%2C+angular%2C+react.js%2C+reactjs%2C+react&l= http://www.indeed.com/jobtrends?q=angularjs%2C+angular%2C+re... React as a term is understandably a bit polluted though.