The end result has to be some combination of HTML, CSS, and JavaScript; otherwise, your browser really won’t know what to do. Now, here’s where the special nature of React comes in.

Output: The results of executing the CSS, HTML, and JavaScript entered into the sections of the page. Figure A shows jsFiddle loaded in Internet Explorer 9 with empty code panes. Figure A ...

A third way to look at it is that React adds HTML to JavaScript through JSX, while Angular adds JavaScript to HTML through templates and components. (For a closer look at Angular, see “ Get ...