реагировать входной номер
<input type="text" pattern="[0-9]*"
onInput={this.handleChange.bind(this)} value={this.state.financialGoal} />
erico
<input type="text" pattern="[0-9]*"
onInput={this.handleChange.bind(this)} value={this.state.financialGoal} />// Validation with REGEX
const rx_live = /^[+-]?\d*(?:[.,]\d*)?$/;
class TestForm extends React.Component {
constructor() {
super();
this.state = {
depositedAmount: ''
};
}
handleDepositeAmountChange = (evt) => {
if (rx_live.test(evt.target.value))
this.setState({ depositedAmount : evt.target.value });
}
render() {
return (
<form>
<input
type="text"
id="depositedAmount"
maxLength={9}
pattern="[+-]?\d+(?:[.,]\d+)?"
placeholder="Enter amount"
onChange={this.handleDepositeAmountChange}
value={this.state.depositedAmount}
/>
</form>
)
}
}