JavaScript | WebAPI | File | File.type Property

Last Updated : 18 Jan, 2019

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>GeeksforGeeks</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>                             