👶
Component Patterns

The children Prop

Content Passthrough
💡 children prop, EK, "PICTURE FRAME" jaisa hai — FRAME, (WRAPPER, COMPONENT), NAHI, JAANТA, ki, ANDAR, KAUN, SI, PICTURE, (CONTENT) JAAYEGI — WOH, SIRF, STRUCTURE, (BORDER, STYLING) PROVIDE, KARTA, hai, aur, CONTENT, JO, BHI, "ANDAR", RAKHA, JAAYE, USE, DISPLAY, KARTA, hai.

children, EK, SPECIAL, PROP, hai, JO, AUTOMATICALLY, PASS, HOTI, hai, JAB, EK, COMPONENT, KE, OPENING, aur, CLOSING, TAGS, KE, BEECH, MEIN, KUCH, CONTENT, RAKHA, JAATA, hai — jaise, <Card>content here</Card>, mein, "content here", Card, KE, children PROP, MEIN, MILТА, hai.

children, KISI, BHI, VALID, JSX (TEXT, ELEMENTS, MULTIPLE, ELEMENTS, YA, DUSRE, COMPONENTS) HO, SAKTA, hai — WRAPPER/LAYOUT, COMPONENTS (jaise, Modal, Card, Layout) BANANE, KA, MOST, COMMON, WAY, hai.

function Modal({ children, onClose }) {
  return (
    <div className="modal-overlay">
      <div className="modal-content">
        {children}
        <button onClick={onClose}>Close</button>
      </div>
    </div>
  );
}

function App() {
  return (
    <Modal onClose={() => console.log("closed")}>
      <h2>Confirm Action</h2>
      <p>Are you sure you want to proceed?</p>
    </Modal>
  );
}
👶
children prop, EK, "PICTURE FRAME" jaisa hai — FRAME, (WRAPPER, COMPONENT), NAHI, JAANТA, ki, ANDAR, KAUN, SI, PICTURE, (CONTENT) JAAYEGI — WOH, SIRF, STRUCTURE, (BORDER, STYLING) PROVIDE, KARTA, hai, aur, CONTENT, JO, BHI, "ANDAR", RAKHA, JAAYE, USE, DISPLAY, KARTA, hai.
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⚡ झट से Recap
  • children = SPECIAL prop, JO, OPENING/CLOSING tags, KE, BEECH, KA, CONTENT, CARRY karta hai
  • Wrapper/layout components (Modal, Card) banane, ka, MOST, COMMON, way
  • Text, elements, ya, DUSRE, components, KUCH, BHI, ho sakta hai
इस page में (2 subtopics)

React.cloneElement(child, extraProps), children, ke, ELEMENTS, KO, CLONE, KARKE, EXTRA, PROPS, ADD, KARNE, DETA, hai — ADVANCED, PATTERN, hai, RARELY, USE, HOTA, hai, LEKIN, COMPONENT, LIBRARIES, (jaise, Tabs) MEIN, MILТA, hai.

React.Children.map(children, child =>
  React.cloneElement(child, { extraProp: "value" })
);

React.Children.count(children) === 0 SE, CHECK, KIYA, JA, SAKTA, hai, ki, children, PROVIDE, HUI, hai, YA, NAHI — EK, COMMON, PATTERN, hai, EMPTY-STATE, UI, DIKHANE, KE, LIYE, AGAR, WRAPPER, COMPONENT, KO, KOI, CONTENT, NAHI, MILA.

💡Tip: children, undefined, bhi, ho, sakta hai, agar, COMPONENT, self-closing (<Card />) hai, BINA, ANDAR, KISI, CONTENT, KE.