HTML | DOM implementation Property

The DOM implementation property in HTML is used to returns the DOMImplementation object associated with the current document. The DOMImplementation is the interface represents a method providing the object which is not dependent on any particular document.

Syntax:

document.implementation

Return Value: It returns the document implementation object.

Example 1:

<!-- HTML code to check the document 
has HTML DOM 1.0 feature -->
<!DOCTYPE html> 
<html> 
    <head> 
        <title> 
            HTML DOM implementation Property 
        </title> 
          
        <script> 
            function DomFunction() { 
                var obj = document.implementation; 
                document.getElementById("demo").innerHTML  
                    = obj.hasFeature("HTML", "1.0"); 
            } 
        </script> 
    </head> 
      
    <body> 
        <h2>HTML DOM implementation Property</h2> 
          
        <p>Click on button to check the document 
        has HTML DOM 1.0 feature</p> 
          
        <button onclick = "DomFunction()"> 
            Click Here! 
        </button> 
          
        <p id = "demo"></p> 
    </body> 
</html>                     

Output:
Before Click on the button:

After Click on the button:

Example 2:

<!DOCTYPE html> 
<html> 
    <head> 
        <title> 
            HTML DOM implementation Property 
        </title> 
    </head> 
      
    <body> 
        <h2>HTML DOM implementation Property</h2> 
        <script> 
            var DOM_Name = "HTML"; 
            var DOM_Ver = "1.0"; 
            var GFG = document.implementation.hasFeature(  
                        DOM_Name, DOM_Ver); 
              
            alert( "DOM " + DOM_Name + " " + DOM_Ver  
                + " supported? " + GFG ); 
        </script> 
    </body> 
</html>                                 

Output:
dom

Supported Browsers: The browser supported by DOM implementation property are listed below:

Google Chrome
Internet Explorer
Firefox
Opera
Safari

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