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

0 vote241 views1 answer
React native sectionlist filter
Javascript React
0 vote245 views1 answer
Bootstrap modal disable close on click outside react bootstrap
Javascript React
0 vote213 views1 answer
ReactNative onPress doesn't exist
Javascript React
18 votes241 views6 answers
Import svg as react component
Javascript React
0 vote255 views1 answer
React js create element
Javascript React
0 vote252 views1 answer
Route guards in react
Javascript React
6 votes250 views5 answers
Scroll to top in react
Javascript React
1 vote234 views1 answer
React scroll to bottom of div
Javascript React
0 vote284 views1 answer
Ionic react use yarn
Javascript React
7 votes253 views2 answers
React native password input
Javascript React