Check if an element is closed using a discrete tag with JavaScript

Question

I am getting the child nodes of en element and i want to check if the tags can actually contain text. For example:

, 

Answer 1

use that:

canContainText: function(node) {
    if(node.nodeType === 3){
        return true;
    }
    if(node.nodeType === 1){
        return /<[^>]+><\/[^>]+>/gi.test(document.createElement(node.nodeName.toLowerCase())).outerHTML;
    }
}