jQuery: check when users start interacting with a web page

In jQuery we can check when users start interacting with a web page.

We can keep track of the first mouse movement after a page is fully loaded by memorizing the exact time when such event occurs.


$(function() {
    sessionStorage.setItem( "start", Date.now() );

    $( "body" ).one( "mousemove", function() {
        var elapsedTime = Date.now() - parseInt( sessionStorage.getItem( "start" ), 10 );
        $.post( "/api/stats/users/interaction", { time: elapsedTime, page: location.href }, function( response ) {
            sessionStorage.removeItem( "start" );
        });
    });
});

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