"react setstate in hooks to array of objects value" Code Answer's
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react setstate in hooks to array of objects value
// 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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