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Advanced React Native

Use Child Components in a Parent Component

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In a component tree, all sub components are passed to the parent component in a prop called children. We can access those children within a component, and change what the component is rendering based on the children.

We'll use children as a way to pass text labels to a new FilterBar component - and map over those children to create new filter bar labels, instead of hard coding those values in the component.

Summary of Content:

  • Make a new FilterBar stateless functional component
  • Pass text labels and children to the FilterBar.
  • Map over the children in FilterBar to return a button for each filter option
  • Use React.Children to map over the children, in order to protect against zero or one children

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