React state

How to define state in react function

import React, { useState } from 'react';

function Example() {
  // Declare a new state variable, which we'll call "count" 
  const [count, setCount] = useState(0);
  return (
    <div>
      <p>You clicked {count} times</p>
      <button onClick={() => setCount(count + 1)}>
        Click me
      </button>
    </div>
  );
}

Source: reactjs.org

React state

const [stateName, SetStateName] = useState();
SetStateName('any name');

React sagas state

import { select } from 'redux-saga/effects';
...
let data = yield select(stateSelectorFunction);

Source: stackoverflow.com

Reading state react

const Example = (props) => {
  // You can use Hooks here!
  return <div />;
}

Source: reactjs.org

React lifecycle hooks

class Content extends React.Component {
  // ...
  componentWillMount() {
    this.setState({ activities: data });
  }
  // ...
}

-1

Source: newline.co

Similar codes

-2 votes218 views1 answer
2 taps is required to close keyboad in react native
Javascript React
0 vote285 views1 answer
How set default value for react-select
Javascript React
0 vote209 views1 answer
Form.Control textarea react bootstrap
Javascript React
-1 vote202 views1 answer
Import ReactDOM from "react-dom";
Javascript React
1 vote319 views2 answers
Generate apk debug react native
Javascript React
1 vote155 views1 answer
Circle progress react
Javascript React
0 vote210 views1 answer
Add clickable link to image in react native
Javascript React
0 vote243 views1 answer
Timezone in react js
Javascript React
0 vote238 views1 answer
React native tab.screen hide title
Javascript React
4 votes214 views2 answers
'Switch' is not exported from 'react-router-dom'.
Javascript React