How to replace selected text with html code?

Question

JavaScript

// выделенный текст
    sel = window.getSelection();

    // если выделена не пустота
    if (sel.rangeCount) {
        range = sel.getRangeAt(0);

        // удалит выделенный тект
        range.deleteContents();
        range.insertNode(document.createTextNode(replacementText));
    }

This will replace the selected text with text, but how do I replace the selected text with html? Those. I need to insert tags between the selected text, I suppose to replace the entire text with my own html, but if possible, I would insert tags between the text, such as surroundContents(), but this method is not suitable, because replaces parent tags and I need to insert new ones. thank you!

Answer 1

document.execCommand('insertHTML', false, ' ' + document.getSelection().toString() + ' ');