How to fix JS menu animation?

Question

JavaScript

Problem such: not the correct animation of closing goes. Works correctly if you remove "classie.remove( perspectivewrapper1, 'modalview' );" but then the site's problem is this: the closing animation is not correct. Works correctly if you remove "classie.remove( perspectivewrapper1, 'modalview' );" (At the end of the code) but then the site does not scroll.

The code

(function() {
  
  function scrollY() {
    return window.pageYOffset || docElem.scrollTop;
  }

  function mobilecheck() {
    var check = false;
    (function(a){if(/(android|ipad|playbook|silk|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4)))check = true})(navigator.userAgent||navigator.vendor||window.opera);
    return check;
  }

  var docElem = window.document.documentElement,
    // support transitions
    support = Modernizr.csstransitions,
    // transition end event name
    transEndEventNames = {
      'WebkitTransition': 'webkitTransitionEnd',
      'MozTransition': 'transitionend',
      'OTransition': 'oTransitionEnd',
      'msTransition': 'MSTransitionEnd',
      'transition': 'transitionend'
    },
    transEndEventName = transEndEventNames[ Modernizr.prefixed( 'transition' ) ],
    docscroll = 0,
    // click event (if mobile use touchstart)
    clickevent = mobilecheck() ? 'touchstart' : 'click';

  function init() {
    var showMenu = document.getElementById( 'showMenu' ),
      perspectivewrapper1 = document.getElementById( 'perspective' ),
      container1 = perspectivewrapper1.querySelector( '.container1' ),
      contentwrapper1 = container1.querySelector( '.wrapper1' );
      
    showMenu.addEventListener( clickevent, function( ev ) {
      ev.stopPropagation();
      ev.preventDefault();
      docscroll = scrollY();
      // change top of contentwrapper1
      contentwrapper1.style.top = docscroll * -1 + 'px';
      // mac chrome issue:
      document.body.scrollTop = document.documentElement.scrollTop = 0;
      // add modalview class
      classie.add( perspectivewrapper1, 'modalview' );
      // animate..
      setTimeout( function() { classie.add( perspectivewrapper1, 'animate' ); }, 25 );
    });

    container1.addEventListener( clickevent, function( ev ) {
      if( classie.has( perspectivewrapper1, 'animate') ) {
        var onEndTransFn = function( ev ) {
          if( support && ( ev.target.className !== 'container1' || ev.propertyName.indexOf( 'transform' ) == -1 ) ) return;
          this.removeEventListener( transEndEventName, onEndTransFn );
          classie.remove( perspectivewrapper1, 'modalview' );
          // mac chrome issue:
          document.body.scrollTop = document.documentElement.scrollTop = docscroll;
          // change top of contentwrapper1
          contentwrapper1.style.top = '0px';
        };
        if( support ) {
          perspectivewrapper1.addEventListener( transEndEventName, onEndTransFn );
        }
        else {
          onEndTransFn.call();
        }
        classie.remove( perspectivewrapper1, 'animate' );
      }
    });
    var vertical = document.querySelectorAll('.outer-nav a'),
      perspectivewrapper1 = document.getElementById( 'perspective' ),
      container1 = perspectivewrapper1.querySelector( '.container1' ),
      contentwrapper1 = container1.querySelector( '.wrapper1' );
    
    
    for (var i = 0; i < vertical.length; i++) {
      
    vertical[i].addEventListener(clickevent, function( ev ) {
    if( classie.has( perspectivewrapper1, 'animate') ) {			
      ev.stopPropagation();
      ev.preventDefault();
      contentwrapper1.style.top = '0px';
      document.body.scrollTop = document.documentElement.scrollTop = docscroll;
      classie.remove( perspectivewrapper1, 'modalview' );
      classie.remove( perspectivewrapper1, 'animate' );
      var linker = this;
      
            setTimeout( function() { document.location.href = linker.href; }, -1 );
    }
    });
    }
    perspectivewrapper1.addEventListener( clickevent, function( ev ) { return false; } );
  }

  init();

})();

Answer 1

recursion in the question)))