How to get active tab index on Google Chrome extension?

Question

I'm trying to get the index of my active tab using Javascript for my Google Chrome extension. What should I do?

Answer 1

Does this help? It also depends on where it is executed from. This snippet is executed on a window event from popup.

chrome.tabs.query({ active: true, currentWindow: true }, function (tabs) {
    chrome.tabs.executeScript(
        tabs[0].id,
        { code: <your code> });
});