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EDIT :: keyboard-image-navigation.js

/** * Twenty Sixteen keyboard support for image navigation. */ ( function( $ ) { $( document ).on( 'keydown.twentysixteen', function( e ) { var url = false; // Left arrow key code. if ( 37 === e.which ) { url = $( '.nav-previous a' ).attr( 'href' ); // Right arrow key code. } else if ( 39 === e.which ) { url = $( '.nav-next a' ).attr( 'href' ); // Other key code. } else { return; } if ( url && ! $( 'textarea, input' ).is( ':focus' ) ) { window.location = url; } } ); } )( jQuery );

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