bootstrap file input upload event code example

Example 1: bootstrap input file

<div class="custom-file">
 <input type="file"  class="custom-file-input" id="inputGroupFile01">
<label class="custom-file-label" for="inputGroupFile01">Choose file</label>
</div>

Example 2: bootstrap file upload

<form>
  <div class="form-group">
    <label for="exampleFormControlFile1">Example file input</label>
    <input type="file" class="form-control-file" id="exampleFormControlFile1">
  </div>
</form>