How to get the text from a parent element only and not from its children - Protractor

var node = $('.someParentDiv > span').contents().filter(function() {
    return this.nodeType == 3; // text node
});

alert(node.text());

string outerHTML = driver.FindElement(By.CssSelector(".linksSection > a#google")).GetAttribute("outerHTML");

HtmlDocument html = new HtmlDocument();
html.LoadHtml(outerHTML);

HtmlAgilityPack.HtmlNode a = html.DocumentNode.SelectNodes("//a[@id='google']");
HtmlNode text = strong.SelectSingleNode("following-sibling::text()");

Console.WriteLine(text.InnerText.Trim());

var getLeafs = function(node) {
    return node.all(by.css('*')).filter(function(child) {
        return child.all(by.xpath('*')).count().then(function(childrenCount) {
            return childrenCount === 0;
        });
    });
};

var leafs = getLeafs(element(by.css('.form-group')));

leafs.count().then(function(c) {
    console.log(c);
});

let h4ByText = (text) => element(by.xpath(`//*[@class="frx-rule-body"]//h3[contains(text(),"${text}")]//ancestor::div[contains(@class,"frx-rule-block")]//h4`));