React. How to store number type in option value?

Question

React

...
<select name="field" value={1} onChange={this.changeForm}>
<option key={0} value={1}>1</option>
<option key={1} value={2}>2</option>
</select>
...

in changeForm , the event.target.value field is of type string , but it needs to be number .
How to solve trouble?

Answer 1

No way. In attributes, all values ​​are stored as strings.
Therefore, I would advise keeping different handlers for different data types in the input. Well or there on isNaN of check to do.

...
const number = isNaN(+value) ? value : +value;
...

Answer 2

What's stopping you from just doing it ?