Celsius to Fahrenheit Converter with React Hooks

by vsasikalabe Updated: Jan 24, 2023

As a rough rule of thumb: To go from Fahrenheit to Celsius, take 30 off the Fahrenheit value, and then half that number. For a 100% accurate answer, subtract 32 and divide by 1.8.const [state, setState] = useState(initialState); To update the state, call the state updater function with the new state setState(newState) . Alternatively, if you need to update the state based on the previous state, supply a callback function setState(prevState => newState).The target event property returns the element that triggered the event. The target property gets the element on which the event originally occurred, opposed to the currentTarget property, which always refers to the element whose event listener triggered the event.

Preview of the output that you will get on running this code from your IDE.

Code

In this solution we use the React library.

Celsius to Fahrenheit Converter with React Hooks

Lines of Code : 43License : CC BY-SA 4.0

function GradConverter(){
  const [temp, updateTemp] = React.useState({ f: 0, c: 0 })

  const updateC = ev => updateTemp({
    c: ev.target.value,
    f: (+ev.target.value * 9 / 5 + 32).toFixed(2)
  })
  
  const updateF = ev => updateTemp({
    c: ((+ev.target.value - 32) * 5 / 9).toFixed(2),
    f: ev.target.value
  })

  return(
    <div id="container">
      <div id="box1">
        <h1>Celsius</h1>
        <input
            type = "number"
            value = {temp.c}
            onChange = {updateC} >
          </input>
      </div>
      <div id="box2">
          <h1>Fahrenheit</h1>
          <input
            type = "number" 
            value = {temp.f} 
            onChange = {updateF}>
          </input>
          </div>
    </div>
  )
}

ReactDOM.render(
  <GradConverter />,
  root
)
<script crossorigin src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>

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

Instructions

Follow the steps carefully to get the output easily.

Install the Node.js and React on your IDE(preferable Visual Studio Code).
Create React Application using npx create-react-app foldername.
cd foldername.
Open the folder in IDE.
Copy the code using "copy" button above and paste it in App.js file(remove the earlier code from App.js).Copy the html code into index.html within the body tag.
Import React library.
Remove the ReactDom render line and paste 'export default GradConverter' to the end.
Open the terminal from IDE.
npm start to run the file.

I hope you found this useful. I have added the link to dependent libraries, version information in the following sections.

I found this code snippet by searching for Celsius to Fahrenheit Converter with React Hooks in kandi. You can try any such use case!

Environment Tested

I tested this solution in the following versions. Be mindful of changes when working with other versions.

The solution is created in VS Code 1.73.1 version.
The solution is tested on Nodejs 16.14.2 version.
react 18.2.0 version

Using this solution, we are able to do Celsius to Fahrenheit Converter with React Hooks with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to do Celsius to Fahrenheit Converter with React Hooks.