Парсинг номера и названия дорожного знака РФ из википедии

getRoadSignCodeAndLabel.js

// https://ru.wikipedia.org/wiki/%D0%94%D0%BE%D1%80%D0%BE%D0%B6%D0%BD%D1%8B%D0%B5_%D0%B7%D0%BD%D0%B0%D0%BA%D0%B8_%D0%A0%D0%BE%D1%81%D1%81%D0%B8%D0%B8

Array.from(document.querySelectorAll('tbody tr:not(:first-child)'))
    .map(row => {
        const $point = row.querySelector('td:nth-child(1)');
        const $label = row.querySelector('td:nth-child(3)');

        if ($point) {
            return {
                code: $point.innerText,
                label: (() => {
                    const countTds = row.querySelectorAll('td').length;

                    switch (countTds) {
                        case 2: return lastLabel;
                        case 3: return lastLabel;
                        default: {
                            if ($label) {
                                lastLabel = $label.innerText;
                            }

                            return lastLabel;
                        }
                    }
                })(),
            };
        }
        
        return null;
    })