What is the difference between HTML and React event handling?

1. In HTML, the event name should be in lowercase:

Whereas in React it follows camelCase convention:

2. In HTML, you can return false to prevent default behavior:

Whereas in React you must call preventDefault() explicitly:

3. In HTML, you need to invoke the function by appending () Whereas in react you should not append () with the function name. (refer "activateLasers" function in the first point for example)