title: How to trigger onChange on <input type='file' /> by another Button click in ReactJS?
body: <pre><code>&lt;div style={{display: 'grid'}}&gt;
      &lt;button id='plus' onClick={???}&gt;+&lt;/button&gt;
      &lt;input id='selectImage' type="file" onChange={fileSelectHandler} /&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Here, I want to trigger the onChange function of input, by clicking the button. How to solve this issue?</p>