Getjson Return Data

Here is my code: var name; function getFBName(username) { $.getJSON('http://graph.facebook.com/' + username, function (d) { name = d.name; }); } getFBName('zuck');

Solution 1:

As @jwatts1980 said, this is a matter of order of execution. $.getJSON will return immediately, before the response has arrived to the client, so when you run console.log, it will still be waiting. One possible solution is:

functiongetFBName(username) {
    $.getJSON('http://graph.facebook.com/' + username, function (d) {
        console.log(d.name);
    });
}
getFBName("zuck");

Which will log Mark Zuckerberg correctly. If you have multiple ways of handling the output, it may also be interesting to set a callback function:

functiongetFBName(username, callback) {
    $.getJSON('http://graph.facebook.com/' + username, function (d) {
        callback(d.name);
    });
}

functionhandleName(name) {
    // Do a lot of things hereconsole.log(name);
}

getFBName("zuck", handleName);