js remove specific value from class code example

Example 1: js remove class

const removeClass = (element, name) => {
    const pattern = new RegExp('(?:^|\\s)'+ name + '(?:\\s|$)', 'g');
    element.className = element.className.replace(pattern, "");
};

Example 2: how to remove class in all siblings javascript

const setActive = el => {
    [...el.parentElement.children].forEach(sib => sib.classList.remove('active'))
    el.classList.add('active')
    }