Javascript - Checking if variable has been set gives me undefined error

Question

I am trying to detect if a variable - play_status - has been set or not in javascript like this..

$lg.on('afterslide', function(event, prevIndex, index){

    if (play_status) {
        console.log('Play Defined')
    }

    iframe = $('.inner .item').eq(index).find('.vimeo').get(0);
    var player = $f(iframe);

    player.addEvent('ready', function(index) {

        player.addEvent('play', function() {
            var play_status = index;
        });

    });

});

But when I run it for the first time (when no variable is set) then I get the following error...

Uncaught ReferenceError: play_status is not defined

Where am I going wrong?

looks like you only declared play_status when you add event play to player, so its not defined outside that scope — Chris Li
– Chris Li, Commented Sep 9, 2018 at 14:48
Thanks Chris, it was indeed a scope issue. Want to make your comment into an answer and I can mark it correct? — fightstarr20
– fightstarr20, Commented Sep 9, 2018 at 14:50

Chris Li · Accepted Answer · 2018-09-09 14:51:22Z

1

looks like you only declared play_status when you add event play to player, so its not defined outside that scope

answered Sep 9, 2018 at 14:51

Chris Li

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1 Comment

fightstarr20 Over a year ago

Thank you, exactly what I was looking for :)

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