component.js

import React from 'react';

export default class HomeTime extends React.Component {
    constructor() {
        super();
        this.state = {
            truckNumber: '',
            driverId: '',
            homeTimeData: null
        };
    }

    handleChangeTruckNumber(event) {
        this.setState({
            truckNumber: event.target.value,
        });
    }

    handleChangeDriverNumber(event) {
        this.setState({
            driverNumber: event.target.value,
        });
    }

    render() {
      let truckNumber = this.state.truckNumber;
      let driverId = this.state.driverId;
        return (
            <div>
              <h1>Home Time</h1>
              <p>Enter the Truck Number or Driver Id of the driver to view expirations</p>
              <div>
                <label>
                    Truck Number
                    <input onChange={this.handleChangeTruckNumber.bind(this)} type="text" value={truckNumber}></input>
                 </label>
                 <label>
                    Driver Id
                    <input onChange={this.handleChangeDriverNumber.bind(this)} type="text" value={driverId}></input>
                 </label>
               </div>
               <button onClick={() => { this.getInfo() }}>Submit</button>
            </div>
         )
    }
 }