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How does useState work

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Md Selim Hossain answered on August 31, 2021 Popularity 9/10 Helpfulness 2/10

answer How does useState work

related How to use useState Hook in React/ReactNative

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How does useState work

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import React, {useState} from 'react';
function Counter() {
    const [count, setCount] = useState(0);

    return (
        <div>
            <p>You clicked {count} times</p>
            <button onClick={() => setCount(count + 1)}>
                Click me
            </button>
        </div>
    );
}

Popularity 9/10 Helpfulness 2/10 Language javascript

Source: knowledge-blog.netlify.app

Tags: javascript use-state

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Contributed on Apr 01 2023

Md Selim Hossain

0 Answers Avg Quality 2/10

Closely Related Answers

How to use useState Hook in React/ReactNative

Comment

import React, { useState } from 'react';

function StepTracker() {
  const [steps, setSteps] = useState(0);

  function increment() {
    setSteps(prevState => prevState + 1);
  }

  return (
    <div>
      Today you've taken {steps} steps!
      <br />
      <button onClick={increment}>
        I took another step
      </button>
    </div>
  );
}

ReactDOM.render(
  <StepTracker />,
  document.querySelector('#root')
);

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: daveceddia.com

Tags: hook

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Contributed on Mar 25 2022

Anatu Green

0 Answers Avg Quality 2/10

useState

Comment

1:  import React, { useState } from 'react';
 2:
 3:  function Example() {
 4:    const [count, setCount] = useState(0);
 5:
 6:    return (
 7:      <div>
 8:        <p>You clicked {count} times</p>
 9:        <button onClick={() => setCount(count + 1)}>
10:         Click me
11:        </button>
12:      </div>
13:    );
14:  }

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Sep 01 2022

Quaint Quail

0 Answers Avg Quality 2/10

usestate

Comment

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>
    );
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Aug 31 2021

Noob Learner

0 Answers Avg Quality 2/10

react js usestate

Comment

// Hooks are a new addition in React 16.8. They let you use state and other React features without writing a class.

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>
  );
}

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Jun 27 2022

scooby-doo

0 Answers Avg Quality 2/10

useState

Comment

Using the State Hook

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>
  );
}

Popularity 9/10 Helpfulness 2/10 Language typescript

Source: Grepper

Tags: typescript t

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Contributed on Feb 03 2023

Olexxandr_S

0 Answers Avg Quality 2/10

usestate in react

Comment

import React, { useState } from 'react';

function Counter() {
  // Define the state variable "count" and the state update function "setCount"
  const [count, setCount] = useState(0);

  const increment = () => {
    // Update the "count" state by increasing its value by 1
    setCount(count + 1);
  };

  const decrement = () => {
    // Update the "count" state by decreasing its value by 1
    setCount(count - 1);
  };

  return (
    <div>
      <h1>Counter: {count}</h1>
      <button onClick={increment}>Increment</button>
      <button onClick={decrement}>Decrement</button>
    </div>
  );
}

export default Counter;

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: chat.openai.com

Tags: javascript j

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Contributed on Aug 03 2023

Nisha Singhal

0 Answers Avg Quality 2/10

usestate in react js

Comment

import React, { useState } from "react";

const Counter = () => {
  // Here we use the useState -->
  const [count, setCount] = useState(0);

  // Here we make the function of the Count with setCount
  const onClick = () => {
    setCount(count + 1);
  };

  return (
    <div>
        <p>You Clicked {count} On The Button</p>
        <button onClick={onClick}>Click Me></button>
    </div>
  );
};

export default Counter;

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Sep 11 2022

Cody Kunal

0 Answers Avg Quality 2/10

usestate

Comment

function ExampleWithManyStates() {
  const [age, setAge] = useState(42);
  const [fruit, setFruit] = useState('banana');
  const [todos, setTodos] = useState([{ text: 'Learn Hooks' }]);

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Jun 18 2022

dev_ade

0 Answers Avg Quality 2/10

How to use React useState Hook

Comment

useState - Has the main purpose to change an element status
useState basically helps React to know what to elements need to be rerendered. 

Ex: We have a post                 (state: it is displayed) 
    You want to eliminate the post (setState: it is not displayed)

Code Ex.:
const [blogs, setBlogs] = useState([  
    { title: 'React forever', body:'Lorem ipsum...', author: 'Sara', id: 1 },
    { title: 'Vue kinda sucks', body:'Lorem ipsum...', author: 'Tony', id: 2 },
    { title: 'Angular lets not go there', body:'Lorem ipsum...', author: 'John', id: 3 },
  	]);

// The JS function that filters all the post with diff. id from the id of the post clicked
const handleDelete = (id) => {
  const newBlogs = blogs.filter(blog => blog.id !== id);
    setBlogs(newBlogs);
  }

// React renders the following JSX
return (
    <div className="blog-list">
      <h2>{ title }</h2>
        {blogs.map((blog) => (
          <div className="blog-preview" key={blog.id}>
            <h3>{ blog.title }</h3>
            <p>written by { blog.author }</p>
            <p>{ blog.body }</p> 
            <button onClick={() => handleDelete(blog.id)} className="hideBtn">Hide Post</button>
          </div>
        ))}
    </div>
    );

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: hook

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Contributed on Aug 31 2022

Gabriele Orlandi

0 Answers Avg Quality 2/10

How does useState work

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How does useState work

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useState

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useState

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How to use React useState Hook

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