Save Input Fields in React

by Abdul Rawoof A R Updated: Jan 24, 2023

In this kit, we're going to see how to save input fields in React with simple steps. I created two component App and Inner component App component contain a form. Our Inner component is containing a const Data further we passed that to dangerouslySetInnerHTML to set inner html . So there can be any number of input field. Sometime it can have 3 to 5 input field. We can give any number inputs to the system it will store and keep that inputs as an comma separated values in a console. To implement this task, use the ready-made code snippet below by just copying the code and paste it in your IDE with React library. Explore more top trending libraries and code snippets on kandi.

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

Code

In this solution we're using React library.

How to save input field in Reactjs?

JavaScriptLines of Code : 87License : CC BY-SA 4.0

export default function App() {
  const dataContainerRef = React.useRef(null);

  const handleSubmission = e => {
    e.preventDefault();
    const inputs = Array.from(dataContainerRef.current.querySelectorAll("input"));
    // if your inputs have unique names:
    const formData = Object.fromEntries(inputs.map(input => [input.name, input.value]));
    // or just get an array of the values:
    const formDataArray = inputs.map(input => input.value);
  };

  return (
    <div className="App">
      <Inner dataContainerRef={ dataContainerRef } />
      <form onSubmit={handleSubmission}>
        <div>Both two values comma separated: </div>
        <button type="submit"> Submit </button>
      </form>
    </div>
  );
}

export default function Inner(props) {
  const { dataContainerRef } = props;

  return (
    <div className="App">
      <h1>Hello CodeSandbox</h1>
      <div
        ref={dataContainerRef}
        className="data-container"
        dangerouslySetInnerHTML={{ __html: data.htmltag }}
      />
    </div>
  );
}

const data = {
    inputNames: ["Hello", "Welcome"],
}

{
    Hello: "",
    Welcome: "",
}

export default function Inner(props) {
  const { formData, setFormData } = props;

  React.useEffect(() => {
    // initialize `formData`
    setFormData(
      Object.fromEntries(data.inputNames.map(inputName => [inputName, ""]))
    );
  }, [setFormData]);

  const inputRows = data.inputNames.map(inputName => (
    <tr key={inputName}>
      <td>{inputName}</td>
      <td>
        <input
          name={inputName}
          value={formData[inputName]}
          onChange={event => {
            event.persist();
            setFormData(prev => ({
              ...prev,
              [event.target.name]: event.target.value
            }));
          }}
        />
      </td>
    </tr>
  ));

  return (
    <div className="App">
      <h1>Hello CodeSandbox</h1>

      <table>
        <tbody>{inputRows}</tbody>
      </table>
    </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 and Inner.js file as per in the demo given below.
Import React and Inner.js file in app.js file.
Open the terminal from IDE.
npm start to run the file.

You can also refer this url 'DEMO' for getting the above output.

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 'how to save input fields in react' 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 Visual Studio Code 1.73.1.
The solution is tested on node v18.12.1 and npm v8.19.2.
React version-18.2.0.

Using this solution, we are able to save input fields in React 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 save input fields in React.