Some tests of working new ChildNode, ParentNode methods and classList in JavaScript.
You can try if your browser supports this new things or tests your polyfills :-)

New elements much simplify DOM operations.

More information:

• https://developer.mozilla.org/pl/docs/Web/API/ChildNode
• https://developer.mozilla.org/en-US/docs/Web/API/ParentNode
• https://developer.mozilla.org/pl/docs/Web/API/Element/classList

Tests are written in Polish language with description methods.

Check this on https://warmaxis.github.io/New_ChildNode_ParentNode_methods_and_classList_JS_tests/

Created by Michał Milanowski

Tests:

• childNodes.after()
• ParentNode.append()
• childNodes.before()
• ParentNode.prepend()
• childNodes.remove()
• childNodes.replaceWith()

Tests:

• element.classList.add()
• element.classList.remove()
• element.classList.contains()
• element.classList.toggle()

• JavaScript
• ES8
• MDN docs
• HTML