bootstrap 4 file input doesn't show the file name
You need to use javascript to show the name of the choosed file, as written in the documentation: https://getbootstrap.com/docs/4.5/components/forms/#file-browser
Here you can find the solution: Bootstrap 4 File Input
That's the code for your example:
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
</head>
<body>
<div class="input-group mb-3">
<div class="custom-file">
<input type="file" class="custom-file-input" id="inputGroupFile02"/>
<label class="custom-file-label" for="inputGroupFile02">Choose file</label>
</div>
<div class="input-group-append">
<button class="btn btn-primary">Upload</button>
</div>
</div>
<script>
$('#inputGroupFile02').on('change',function(){
//get the file name
var fileName = $(this).val();
//replace the "Choose a file" label
$(this).next('.custom-file-label').html(fileName);
})
</script>
</body>
</html>
I have used following for the same:
<script type="application/javascript">
$('input[type="file"]').change(function(e){
var fileName = e.target.files[0].name;
$('.custom-file-label').html(fileName);
});
</script>
The answer of Anuja Patil only works with a single file input on a page. This works if there are more than one. This snippet will also show all files if multiple is enabled.
<script type="text/javascript">
$('.custom-file input').change(function (e) {
var files = [];
for (var i = 0; i < $(this)[0].files.length; i++) {
files.push($(this)[0].files[i].name);
}
$(this).next('.custom-file-label').html(files.join(', '));
});
</script>
Note that $(this).next('.custom-file-label').html($(this)[0].files.join(', ')); does not work. So that is why the for loop is needed.
If you never work with mulitple files in the file upload, this simpler snippet can be used.
<script type="text/javascript">
$('.custom-file input').change(function (e) {
if (e.target.files.length) {
$(this).next('.custom-file-label').html(e.target.files[0].name);
}
});
</script>