input with button react code example

Example 1: react how to pass the input target value

class NameForm extends React.Component {
  constructor(props) {
    super(props);
    this.state = {value: ''};

    this.handleChange = this.handleChange.bind(this);
  }

  handleChange(event) {
    this.setState({value: event.target.value});
  }

  render() {
    return (
      <form>
        <label>
          Name:
          <input type="text" value={this.state.value} onChange={this.handleChange} />
        </label>
        <input type="submit" value="Submit" />
      </form>
    );
  }
}

Example 2: setimeout react button

import React, { useEffect, useState } from 'react';

const TimeoutExample = () => {
  const [count, setCount] = useState(0);
  const [countInTimeout, setCountInTimeout] = useState(0);

  useEffect(() => {
    setTimeout(() => {
      setCountInTimeout(count); // count is 0 here
    }, 3000);
    setCount(5); // Update count to be 5 after timeout is scheduled
  }, []);

  return (
    <div>
      Count: {count}
      <br />
      setTimeout Count: {countInTimeout}
    </div>
  );
};

export default TimeoutExample;