javascript remove class from all elements code example

Example 1: remove element by class

function removeElementsByClass(className){
    var elements = document.getElementsByClassName(className);
    while(elements.length > 0){
        elements[0].parentNode.removeChild(elements[0]);
    }
}

Example 2: remove a class from all elements javascript

var class_name='classname';

elements=document.getElementsByClassName(class_name)

for(element of elements){
  element.classList.remove(class_name)
}

Example 3: js remove class

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