Question

I am a jQuery newbie. I have a core js file which will not be visible to my user. I have the following function inside it that makes a server request –

function checkMsgs(t1,t2) {

// poll the url
    // return the results 

    $.get("http://www.mySite.com/web/test.php", {
        "t1" : t1,
            "t2" : t2
    }, function(data) {
    return data;
});

}

Now, I want to call this function, without blocking the thread i.e., asynchronously. How do I make a function call after it returns from this method, but without blocking anything?

Answer 1

You cannot “return” from $.get, it doesn’t work that way. What you want to do is pass a callback to checkMsgs and call it when $.get is done.

function checkMsgs(t1, t2, callback) {
    $.get("http://www.mySite.com/web/test.php", {
        "t1": t1,
        "t2": t2
    }, function (data) {
        // do whatever...
        $.isFunction(callback) && callback(data);
    });
}

Then you call checkMsgs like this:

checkMsgs('a', 'b', function(data){
    console.log(data);
});