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JavaScript | WebAPI | File | File.type Property

The File.type property is an inbuilt function of File WebAPI which gives the media type (MIME) of the file represented by a file object.

Syntax:

var name = file.type;

Return Value: It returns a string containing media type (MIME) indicating the type of the file. For example: “image/png” for PNG images.

Example:




<!DOCTYPE html>
<html>
<head>
    <title>
        WebAPI File.type
    </title>
    <style>
        #test {
            padding: 10px;
            width: 300px;
            border: 1px solid green;
            text-align:center;
            font-size:22px;
        }
    </style>
</head>
  
<body>
    <div id = "test">
        <div>neveropen</div>
        <div>file.type</div>
          
        <input type = "file" multiple onchange
                = "myGeeks(this)">
    </div>
      
    <script type = "text/javascript">
        function myGeeks(fileInput) {
              
        var files = fileInput.files;
          
            for (var i = 0; i < files.length; i++) {
                  
                var file_name = files[i].name;
                var file_type = files[i].type;
                  
                alert("Filename: " + file_name
                    + ", Type: " + file_type);
            }
        }
    </script>
    </body>
</html>                            


Output:

Supported Browsers: The browser supported by WebAPI File.type property are listed below:

  • Edge
  • Google Chrome 13.0
  • Firefox 3.6
  • Opera 16.0
  • Internet Explorer 10.0
  • Safari

Reference: https://developer.mozilla.org/en-US/docs/Web/API/File/type

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