What is the type of the ‘children’ prop?

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In React, the children prop is a special prop that is used to pass components, elements, or text content to other components.

It’s not limited to a specific type; it can be any valid React node, including:

  1. React elements: JSX elements or components.
  2. Strings or numbers: Plain text or numeric values.
  3. Arrays of React elements: Multiple elements grouped within an array.
  4. null or undefined: When there are no children.

Here’s an example illustrating the usage of the children prop:

function ParentComponent({ children }) {
  return (
      <h1>Parent Component</h1>

function App() {
  return (
      <p>This is a child paragraph.</p>
      <button>Click me</button>

In this example, the ParentComponent receives children through the children prop. Inside the ParentComponent, children are rendered within a <div> element. The children can include JSX elements like <p> and <button> as well as text nodes.

It’s important to note that the children prop is implicit in React. We don’t need to explicitly pass it as a prop when using JSX. React automatically passes the children of a component as the children prop.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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