Function getTabIndex

background_scripts/main.js:161–168

(tab, tabs)

// Find a tab's actual index in a given tab array returned by chrome.tabs.query. In Firefox, there
// may be hidden tabs, so tab.tabIndex may not be the actual index into the array of visible tabs.
function getTabIndex(tab, tabs) {
  // First check if the tab is where we expect it, to avoid searching the array.
  if (tabs.length > tab.index && tabs[tab.index].index === tab.index) {
    return tab.index;
  } else {
    return tabs.findIndex((t) => t.index === tab.index);
  }
}

//
// Selects the tab with the ID specified in request.id