Functions as a child
Explore the Functions as a Child (FaaC) pattern in React to enhance component flexibility and composition. Understand how to pass functions as children for dynamic rendering, compare it to higher-order components, and apply it in practical examples like formatting text and loading crypto prices. This lesson helps you master this pattern to write more adaptable and efficient React components.
We'll cover the following...
children prop
The value of a prop in JSX can be any valid JavaScript expression. As invoked functions can also return expressions, we can also use the return value of this function as a prop. Strings, booleans, arrays, objects, other React elements, and null can also be passed as props. The prop children is a special form, meaning that both of these lines will
result in the same output when rendered:
<MyComponent>I am a child element</MyComponent>
<MyComponent children="I am a child element" />
The props.children function can be used to access “I am a child element” in MyComponent.
We can use this principle and also pass functions that are invoked during render() within a component. This way, data can be passed from one component into the next. The principle is similar to that of higher-order components, but offers a little more ...