Question

I have javascript object defined like this:

function SocialMiner() 
{


var verbose=true;

var profileArray=new Array();

var tabUrl;

this.getTabUrl=function()
{
    logToConsole("getTabUrl is called");


    chrome.tabs.getSelected(null, function(tab)
    {
        tabUrl = tab.url;
        logToConsole(tabUrl);

    });

    return tabUrl;
}   `

Then I call this function on SocialMiner ojbect like this:

 var pageUrl=miner.getTabUrl();
 miner.logToConsole(pageUrl);

What is the reason that first call to logToConsole successfully prints the Url, while second one says undefined. Am I not returning the same value from the function ?

Update: This is how I have defined logToConsole:

function logToConsole(text) 
    {
        if (verbose)
            console.log(text);
    }

    this.logToConsole=logToConsole;

Answer 1

In the second example, you are calling logToConsole as if it is a function of the miner object, which is is not.

miner.logToConsole

Edit

Per comments about github example, this should make the logToConsole function par of the SocialMiner object. However, I didn’t read the class thoroughly, so proceed with caution with regards to how it is intended to be used.

this.logToConsole=function(text) 
{
    if (verbose)
        console.log(text);
}