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TextDecoder Web API | TextDecoder constructor

  • Last Updated : 04 Oct, 2019

In HTML there is a TextDecoder Interface of which we can create a TextDecoder object for the encoding specified in parameter.

Syntax:

decoder = new TextDecoder( utf-Label, option );

Parameters: This constructor accepts two parameters which are mentioned above and described below:

  • utf-Label: Label of the encoder in string format. It is “utf-8” as default.
  • option: TextDecoderOptions dictionary which has a property fatal (It is a Boolean flag which indicates if the TextDecoder.decode() method should throw DOMException. It’s default value is false.)

Example 1: This example creating a TextDecoder object with “iso-8859-2” as parameter.




<!DOCTYPE html>
<html>
  
<head>
    <title
        TextDecoder Web API | TextDecoder constructor
    </title
</head>
  
<body>
    <center>
        <h1 style="color:green;"
            GeeksforGeeks 
        </h1>
  
        <h2>TextDecoder constructor</h2>
          
        <button onclick="gettextDecoder ();">
            Get textDecoder object
        </button>
          
        <p id='textDecoder'></p>
      
        <script type="text/javascript">
            function gettextDecoder() {
                var textDecoder1 = new TextDecoder("iso-8859-2");
      
                console.log(textDecoder1);
            }
        </script>
    </center>
</body>
  
</html>

Output:



  • Before Click the button:
  • After Click the button:

Example: Create a comment object with nothing as parameter. So the default parameter which is “utf-8” will be taken.




<!DOCTYPE html>
<html>
  
<head>
    <title
        TextDecoder Web API | TextDecoder constructor
    </title
</head>
  
<body>
    <center>
        <h1 style="color:green;"
            GeeksforGeeks 
        </h1>
  
        <h2>TextDecoder constructor</h2>
          
        <button onclick="gettextDecoder ();">
            Get textDecoder object
        </button>
          
        <p id='textDecoder'></p>
      
        <script type="text/javascript">
            function gettextDecoder() {
                var textDecoder1 = new TextDecoder();
  
                console.log(textDecoder1);
            }
        </script>
    </center>
</body>
  
</html>

Output:

  • Before Click the button:
  • After Click the button:

Supported Browsers: The browsers supported by TextDecoder constructor are listed below:

  • Google Chrome 38
  • Firefox 19
  • Opera 25
  • Safari 10.1

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