07. Locked Profile Exercise: DOM Manipulations

function lockedProfile() {
    [...document.getElementsByTagName('button')].map(but => but.addEventListener('click', function (e) {
        mapper = {
            'Show more': () => ['block', 'Hide it'],
            'Hide it': () => ['none', 'Show more']
        };
        if (!e.target.parentElement.querySelector('input[type=radio]').checked) {
            e.target.parentElement.querySelector('div').style.display = mapper[e.target.textContent](e)[0];
            e.target.parentElement.querySelector('button').textContent = mapper[e.target.textContent](e)[1];
        };
    }));
}