Recursive string search in DOM-Nodes using a generator

findElementByInnerText.js

/*
 * @param {HTMLElement} node
 * @yields {Iterable.<*>}
 */
function* _deepTraverseElements (node) {
    if (node.nodeType !== 1) {
        return;
    }
    for (let i = 0; i < node.children.length; i++) {
        yield* _deepTraverseElements(node.children[i]);
    }
    yield node;
}

/*
 * Usage: findElementByInnerText('body', 'Hello World');
 * @param {string} selector
 * @param {string} String the element should contain
 * @returns {(boolean)|(HTMLElement)} DOM-Element that contains the string. Returns false if none is found
 */

const findElementByInnerText = (selector, text) => {
    const node = document.querySelector(selector);
    _deepTraverseElements(parent);
    for (const element of _deepTraverseElements(node)) {
        if (element.textContent.includes(text)) {
            return element;
        }
    }
    return false;
};