How to make a loop to check for the presence of text in an element (JavaScript, Selenium Python)?

Question

Python

Hello!
I have a question like this:
Selenium Python method finds an element:
price = driver.find_by_css_selector('.price')
Checks if there is text:

if price.text is None:
    driver.execute_script(here_is_the_script)

So, I need the JS script itself, which would go through all the child elements of our element if there was no text in it and stop if there was text in one of them.
Thank you!

Answer 1

(function (el){
    var children = el.childNodes, i = children.length;
    while (i--) {
        if (children[i].nodeType === 1 && children[i].innerHTML) {
            return;
        }
    }
}(document.querySelectorAll(".price")[0]))

Simple traversal of first level child elements.