CODEWITHSUNDEEP
reactjs
user10336550
user10336550

Reputation:

Is it possible to use props in React.hooks?

I have a component X it accepts Y from props. Is it possible to use Y in hooks?cod

import React, { useState } from "react";

function X({ y }) {
  const [index, setIndex] = useState(y);
  const ADD = () => {
    setIndex(index + 1);
  };
  return (
    <div>
      {index}
      <button onClick={ADD}>+</button>
    </div>
  );
}

Upvotes: 1

Views: 5256

Answers (1)

Tholle
Tholle

Reputation: 112777

Using a prop as argument to useState works great for setting an initial value.

Example

const { useState } = React;

function X({ y }) {
  const [index, setIndex] = useState(y);
  const add = () => {
    setIndex(index + 1);
  };
  return (
    <div>
      {index}
      <button onClick={add}>+</button>
    </div>
  );
}

ReactDOM.render(<X y={5} />, document.getElementById("root"));
<script src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>

<div id="root"></div>

Upvotes: 4

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