index.js

 function setInputValue(id, value) {
    const input = document.getElementById(id);
    const lastValue = input.value;

    input.value = value;

    // react 16 hack
    let tracker = input._valueTracker;
    if (tracker) {
      tracker.setValue(lastValue);
    }

    input.dispatchEvent(new Event('input', {'bubbles': true, 'cancelable': true}));
  }