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React update state array of objects hooks

By Graceful GiraffeGraceful Giraffe on May 18, 2021 
React find and update state value

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1

react setstate in hooks to array of objects value

By Mystic DevMystic Dev on Mar 02, 2021 
// sample datas structure
/* const datas = [
    {
      id:   1,
      name: 'john',
      gender: 'm'
    }
    {
      id:   2,
      name: 'mary',
      gender: 'f'
    }
] */ // make sure to set the default value in the useState call (I already fixed it)

const [datas, setDatas] = useState([
    {
      id:   1,
      name: 'john',
      gender: 'm'
    }
    {
      id:   2,
      name: 'mary',
      gender: 'f'
    }
]);

const updateFieldChanged = index => e => {

    console.log('index: ' + index);
    console.log('property name: '+ e.target.name);
    let newArr = [...datas]; // copying the old datas array
    newArr[index] = e.target.value; // replace e.target.value with whatever you want to change it to

    setDatas(newArr); // ??
}

return (
    <React.Fragment>
        { datas.map( (data, index) => {
              <li key={data.name}>
                <input type="text" name="name" value={data.name} onChange={updateFieldChanged(index)}  />
              </li>
          })
        }
    </React.Fragment>
)

Source: stackoverflow.com

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0

React update state array of objects hooks

By Graceful GiraffeGraceful Giraffe on May 18, 2021 
React fin and update state value

Add Comment

0

React update state array of objects hooks

By Graceful GiraffeGraceful Giraffe on May 18, 2021 
Find & Update state

Add Comment

-1

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