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

24 votes182 views6 answers
Proptypes react
Javascript React
-1 vote168 views1 answer
React check if browser is in dark mode
Javascript React
0 vote175 views1 answer
Select checkbox raitng in order javascript React
Javascript React
0 vote180 views2 answers
Reactjs firebase timestamp to date
Javascript React
1 vote194 views2 answers
Hosting react with pm2
Javascript React
5 votes154 views4 answers
React native status bar
Javascript React
0 vote146 views1 answer
React redux stack overflow
Javascript React
11 votes149 views3 answers
Reactjs get url query params as object
Javascript React
0 vote172 views1 answer
Onclick inline function react
Javascript React
1 vote154 views2 answers
Switch is not exported from react-router-dom
Javascript React