Question

I have this script and need to be able to call the $play variable as a function i.e. restart the set interval the pause function works fine but I can’t get it to restart on clicking play.

    if( itemsCount > 1 ) {
        // addNavigation
        var $navPlay= $('body').find('.play'),
        $navPause= $('body').find('.pause'),
        $imgWrapper= $rgGallery.find('div.rg-image'),
        $play = window.setInterval(function(){
            _navigate('right');
        }, 500);

        $navPlay.on('click', function( event ) {
            $play;
            return false;
        });

        $navPause.on('click', function( event ) {
            clearInterval($play);
            return false;
        });
    }
},

Answer 1

Haven’t exactly had the time to create an example to replicate something similar to your use case, but something along these lines should do.

    function starter() {
        return (window.setInterval(function () {
            _navigate('right');
        }, 500));
    }

    // stuff
    if( itemsCount > 1 ) {
            // addNavigation
            var $navPlay        = $('body').find('.play'),
                $navPause       = $('body').find('.pause'),
                $imgWrapper     = $rgGallery.find('div.rg-image'),
                $play           = starter(); // auto-start (set to null if not desired)

            $navPlay.on('click', function( event ) {
                if (!$play) { // probably don't want to set this twice
                  $play = starter();
                }
                return false;
            });

            $navPause.on('click', function( event ) {
                if ($play) {
                    clearInterval($play);
                    $play = null;
                }
                return false;
            });
    }           
    // stuff