简单的$ .getJSON（“ adress”），function（res）{不起作用

Question

I have a simple function:

setInterval(function () {
    $.getJSON("https://graph.facebook.com/v2.8/?ids=1234567_1234567&fields=reactions.type(LIKE).limit(0).summary(total_count).as(reactions_like)%2Creactions.type(LOVE).limit(0).summary(total_count).as(reactions_love)&access_token=thatsmytoken"),
        function (res) {

            console.log(res);

        };
}, 5000);

So it should call GET and show the result in console but its not... I can see the result of GET in network info in Chrome (every 5 seconds it works fine) but its not going inside the function(res)

Why is that?

Answer 1

Your parentheses are incorrect. It should be:

setInterval(function () {
    $.getJSON("https://graph.facebook.com/v2.8/?ids=1234567_1234567&fields=reactions.type(LIKE).limit(0).summary(total_count).as(reactions_like)%2Creactions.type(LOVE).limit(0).summary(total_count).as(reactions_love)&access_token=thatsmytoken",
        function (res) {

            console.log(res);

        });
}, 5000);

Now, function(res){...} will be the callback of the getJSON function if it succeeds. Click here for more information about the callbacks.