/Javascript/React/React input number validation

React input number validation

// 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>
    )
  }
}

Source: stackoverflow.com

Similar codes

3 votes196 views3 answers
Async await class component react
Javascript React
0 vote185 views1 answer
Laravel react 404 routes
Javascript React
92 votes193 views6 answers
React router dom
Javascript React
2 votes285 views2 answers
Export aab react native
Javascript React
0 vote188 views1 answer
Créer composant react
Javascript React
2 votes210 views1 answer
React-native open call app
Javascript React
0 vote193 views1 answer
Switch react router
Javascript React
8 votes208 views3 answers
Disable eslint for react project
Javascript React
0 vote206 views2 answers
React query stop refetch when i switch browser tabs (per query)
Javascript React
1 vote223 views3 answers
Linear gradient react native
Javascript React