```js
import { NumberInput } from 'frontend-react-components';

initialState = { positive:  '1', integer: '-1', decimal: '20.22' };

<div>
   Positive Integers
   <NumberInput value={ state.positive } onChange={(positive) => setState({ positive }) } />

   Integers
   <NumberInput value={ state.integer } onChange={(integer) => setState({ integer }) } allowNegatives />

   Two decimal places
   <NumberInput value={ state.decimal } onChange={(decimal) => setState({ decimal }) } decimalPrecision={2} />

</div>
```