simple web scraping using js

jsscraping.js

const scraper = {
    elements: [],
    setElement: (name, el, option = 'textContent') => {
        var content = document.querySelector(el);
        if (!content) {
            return console.log('Element for : '+ name + ' not found 404');
        }

        return scraper.elements.push({[name]:content[option].trim()});
    },
    toJson: () => {
        return JSON.stringify(scraper.elements);
    }
};

scraper.setElement(NAME_OF_THE_KEY, ELEMENT_SELECTOR, FUNCTION);
scraper.setElement('title', '#header > span.balancedHeadline', 'textContent');
scraper.toJson();

/**
    HOW TO USE
    # Set the elements
    scraper.setElement('title', '#header > span.balancedHeadline', 'textContent');
    scraper.setElement('image', '#header > img', 'src');

    # Print the result as JSON
    scraper.toJson()
    {title: 'Headline Title', image: 'https://aaaa.png'}

    OPTIONS
    textContent, src, text, html
*/