JSFiddle - React, Tailwind, and code Playground

JavaScript

function expireAllCookies(name, paths) {
    var expires = new Date(0).toUTCString();

    // expire null-path cookies as well
    document.cookie = name + '=; expires=' + expires;

    for (var i = 0, l = paths.length; i < l; i++) {
        document.cookie = name + '=; path=' + paths[i] + '; expires=' + expires;
    }
}

function display() {
    document.write('<pre>' + (document.cookie || '{blank}') + '</pre>');
}

function create() {
    document.cookie = 'name=value1';
    document.cookie = 'name=value2; path=/';
    document.cookie = 'name=value3; path=/_display/';
}

function expire() {
    expireAllCookies('name', ['/', '/_display/']);
}

display();
create();
display();
expire();
display();