问如何使用jquery在菜单项中使用鼠标悬停添加活动类？

EN

(function() {
				[].slice.call(document.querySelectorAll('.menu')).forEach(function(menu) {
					var menuItems = menu.querySelectorAll('.menu_link'),
						setCurrent = function(ev) {
							ev.preventDefault();

							var item = ev.target.parentNode; // li
							
							// return if already current
							if( classie.has(item, 'menu_item-current') ) {
								return false;
							}
							// remove current
							classie.remove(menu.querySelector('.menu_item-current'), 'menu_item-current');
							// set current
							classie.add(item, 'menu_item-current');
						};
					
					[].slice.call(menuItems).forEach(function(el) {
						el.addEventListener('click', setCurrent);
					});
				});

				[].slice.call(document.querySelectorAll('.link-copy')).forEach(function(link) {
					link.setAttribute('data-clipboard-text', location.protocol + '//' + location.host + location.pathname + '#' + link.parentNode.id);
					new Clipboard(link);
					link.addEventListener('hover', function() {
						classie.add(link, 'link-copy--animate');
						setTimeout(function() {
							classie.remove(link, 'link-copy--animate');
						}, 300);
					});
				});
			})(window);
      


( function( window ) {

'use strict';


function classReg( className ) {
  return new RegExp("(^|\\s+)" + className + "(\\s+|$)");
}

var hasClass, addClass, removeClass;

if ( 'classList' in document.documentElement ) {
  hasClass = function( elem, c ) {
    return elem.classList.contains( c );
  };
  addClass = function( elem, c ) {
    elem.classList.add( c );
  };
  removeClass = function( elem, c ) {
    elem.classList.remove( c );
  };
}
else {
  hasClass = function( elem, c ) {
    return classReg( c ).test( elem.className );
  };
  addClass = function( elem, c ) {
    if ( !hasClass( elem, c ) ) {
      elem.className = elem.className + ' ' + c;
    }
  };
  removeClass = function( elem, c ) {
    elem.className = elem.className.replace( classReg( c ), ' ' );
  };
}

function toggleClass( elem, c ) {
  var fn = hasClass( elem, c ) ? removeClass : addClass;
  fn( elem, c );
}

var classie = {
  // full names
  hasClass: hasClass,
  addClass: addClass,
  removeClass: removeClass,
  toggleClass: toggleClass,
  // short names
  has: hasClass,
  add: addClass,
  remove: removeClass,
  toggle: toggleClass
};

// transport
if ( typeof define === 'function' && define.amd ) {
  // AMD
  define( classie );
} else {
  // browser global
  window.classie = classie;
}

})( window );

.menu_item {
  display: block;
  margin: 1em 0;
}
.menu_link {
  -moz-user-select: none;
  cursor: pointer;
  display: block;
  font-size: 1.05em;
  font-weight: bold;
  padding: 10px 20px;
  text-decoration: none !important;
}
.menu_list {
  display: flex;
  flex-wrap: wrap;
  list-style: outside none none;
  margin: 0;
  padding: 0;
  position: relative;
}
.menu {
  line-height: 1;
  margin: 0 ;
}
.menu-miranda .menu_item {
  margin: 10px 5px;
  position: relative;
}
.menu-miranda .menu_link {
  color: #b5b5b5;
  display: block;
  min-width: auto;
  position: relative;
  text-align: center;
  transition: color 0.3s ease 0s;
}
.menu-miranda .menu_link:hover, .menu-miranda .menu_link:focus {
    color: #929292;
}
.menu-miranda .menu_item-current .menu_link {
    color: #d94f5c;
}
.menu-miranda .menu_item::before, .menu-miranda .menu_item::after, .menu-miranda .menu_link::before, .menu-miranda .menu_link::after {
    background: #d94f5c none repeat scroll 0 0;
    content: "";
    position: absolute;
    transition: transform 0.1s cubic-bezier(1, 0.68, 0.16, 0.9) 0s;
}
.menu-miranda .menu_item::before, .menu-miranda .menu_item::after {
    height: 100%;
    top: 0;
    transform: scale3d(1, 0, 1);
    width: 2px;
}
.menu-miranda .menu_item::before {
    left: 0;
    transform-origin: 50% 100% 0;
}
.menu-miranda .menu_item::after {
    right: 0;
    transform-origin: 50% 0 0;
}
.menu-miranda .menu_link::before, .menu-miranda .menu_link::after {
    height: 2px;
    left: 0;
    transform: scale3d(0, 1, 1);
    width: 100%;
}
.menu-miranda .menu_link::before {
    top: 0;
    transform-origin: 0 50% 0;
}
.menu-miranda .menu_link::after {
    bottom: 0;
    transform-origin: 100% 50% 0;
}
.menu-miranda .menu_item .menu_link::after {
    transition-delay: 0.3s;
}
.menu-miranda .menu_item-current .menu_link::after {
    transition-delay: 0s;
}
.menu-miranda .menu_item::before {
    transition-delay: 0.2s;
}
.menu-miranda .menu_item-current::before {
    transition-delay: 0.1s;
}
.menu-miranda .menu_item .menu_link::before {
    transition-delay: 0.1s;
}
.menu-miranda .menu_item-current .menu_link::before {
    transition-delay: 0.2s;
}
.menu-miranda .menu_item-current::after {
    transition-delay: 0.3s;
}
.menu-miranda .menu_item-current::before, .menu-miranda .menu_item-current::after, .menu-miranda .menu_item-current .menu_link::before, .menu-miranda .menu_item-current .menu_link::after {
    transform: scale3d(1, 1, 1);
}

<div class="nav-collapse collapse pull-right menu menu-miranda">
                        <ul class="menu_list" id="top-navigation">
                            <li class="menu_item menu_item-current"><a class="menu_link"  href="#home">Home</a></li>
                            <li class="menu_item"><a class="menu_link" href="#service">Services</a></li>
                            <li class="menu_item"><a class="menu_link"  href="#portfolio">Portfolio</a></li>
                            <li class="menu_item"><a class="menu_link"  href="#about">About</a></li>
                            <li class="menu_item"><a class="menu_link"  href="#clients">Clients</a></li>
                            <li class="menu_item"><a class="menu_link"  href="#price">Price</a></li>
                            <li class="menu_item"><a class="menu_link"  href="#contact">Contact</a></li>
                        </ul>
                    </div>