Question

this is triggered when a swipe action occurs for more than ___ px in horizontal direction.

Answer 1

it seems computer science , right !
it is categorized on $\textbf{swipe events}$. it is like jQuery( window ).on( "swipe", function( event ) { ... } )

hence, this is triggered when a swipe action occurs for more than $\bf{30}$px in horizontal direction within 1 second duration.

hence, answer is 30px