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JavaScript

Posted by john larson
john larson
16,594 Points

ParentNode is a raw interface and no object of this type can be created; it is implemented by Element, Document, and Doc

Trying to understand MDN docs. Came across this. Is it saying that ParentNode is a built in object/method that we have access to but we can't make our own?

1 Answer

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

I don't believe so, no. But I'm not sure why exactly you'd want to either. However, you can access the ParentNode of an element and set it to a variable. I've made a small example for you to show how this might be done. The style I'm using is in the head section instead of making a completely new file.

<!DOCTYPE html>
<html>
    <head>
       <title>Test</title>
        <style>
            .myClass {
                background-color: tomato;
            }
        </style>
    </head>
    <body>
        <div id="listDiv">
           <div class ="content">
                <h1>This is my content div!</h1>
           </div>
            <div id="output">
                <ul id="myList">
                    <li>Item #1</li>
                    <li>Item #2</li>
                    <li>Item #3</li>
                </ul>
            </div>
        </div>
         <script src="testjs.js"></script> 
    </body>
</html>

And here's the JavaScript:

var myParentNode = document.getElementById("myList").parentNode;
console.log(myParentNode);
myParentNode.className ="myClass";

The console will log out the div with the id of "output" as it is the Parent node of the ul with the id "myList". I then take that variable name and assign the class to it which results in a "tomato" background color. Hope this helps! :sparkles:

john larson
john larson
16,594 Points

Thank you Jennifer, that is a beautifully illustrated example.