Using Xmlhttprequest In A Google Chrome Extension

I started making this simple google chrome extension in javascript. And in the beginning of the code I have the following: var req = new XMLHttpRequest(); req.open( 'GET',

Solution 1:

how about something like this

var request = newXMLHttpRequest();

if (request == null){
        alert("Unable to create request");
    }else{

        var url = "http://www.ldoceonline.com/dictionary/manga";

        request.onreadystatechange = function()
            {
            if(request.readyState == 4)
            {
                LDResponse(request.responseText);
            }
        }

        request.open("GET", url, true);
        request.send(null);
    }

functionLDResponse(response)
{
// do stuff with the response
}

Of course this is all assuming that they are giving you valid data back ie XML or json

Solution 2:

On this line:

req.onreadystatechange(alert(req.readyState));

alert() is being called straight away, which I'm sure isn't your intention. It seems that you want to wait for the onreadystatechange event to fire and then alert the readyState. If that's the case then try this:

req.onreadystatechange = function() {
    alert(req.readyState);
};

And don't forget req.send(null)!