forceUpdate void forceUpdate( [function callback] ) By

React React is the entry point to the React library. If you're using one of the prebuilt packages it's available

One of React's biggest strengths is that it's easy to track the flow of data through your React components. When you look at a component, you can easily see exactly which props

Updating: componentDidUpdate void componentDidUpdate( object prevProps, object prevState

replaceState void replaceState( object nextState, [function callback] )

For parent-child communication, simply pass props. For child-parent

if-else statements don't work inside JSX. This is because JSX is just syntactic sugar for function calls and object construction. Take this basic example:

There's another (uncommon) way of communicating between components: simply expose a method

React.cloneElement ReactElement cloneElement( ReactElement element, [object props]

Updating: shouldComponentUpdate boolean shouldComponentUpdate( object nextProps, object