VanillaJS Cookie Functions

cookies.js

var cookie = {
  set: function(name, value, seconds) {
    setCookie(name, value, seconds);
  },
  
  clear: function(name, value, seconds) {
    setCookie(name, null, -1);
  },
  
  clearAll: function() {
    var cookies = document.cookie.split(';');
    for (var i = 0; i < cookies.length; i++) {
      var cookie = cookies[i];
      var equals = cookie.indexOf('=');
      var name = equals > -1 ? cookie.substr(0, equals) : cookie;
      setCookie(name, null, -1);
    }
  }
};

function setCookie(name, value, seconds) {
  var expires = '';
  if (seconds) {
    var date = new Date();
    date.setTime(date.getTime() + (seconds * 1000));
    expires = '; expires=' + date.toGMTString(); 
  }
  document.cookie = name + '=' + value + expires + '; path=/';
}