When an event is fired, event handlers determine what action should be performed. This could be a button press or a text input change. Event handlers are the components that allow users to interact with your React project.
Binding Event Handler in Render Method: The bind() method can be used to bind the handler when it is called in the render method.
OnClick instead of onclick is how React events are written in camelCase syntax. Instead of onClick="shoot()," React event handlers are written inside curly braces: onClick=shoot.
When a user clicks an element in your app, such as a button, the React onClick event handler allows you to call a function and perform an action. In a React app, event names are typed in camelCase, therefore the onclick event is written as onClick. React event handlers can also be found inside curly brackets.