Chrome扩展程序：chrome存储无法识别obj [“name”+ i]

Question

我想找到一个我放入chrome storage的标签名称。不同标签的名称由tabNames之后的数字标识。例如，存储中的选项卡名称将显示为tabNames1, tabNames2等。

当我尝试遍历选项卡以查找选项卡名称时，我无法使用变量来表示数字，并且会导致未定义。

我试图用for loop遍历所有选项卡名称，但如果我不能使用i代替1,2,3等，我不知道该怎么做。

编辑：包含更多代码

background.js

chrome.runtime.onInstalled.addListener(onInstall);
function onInstall()
{
    chrome.storage.local.set({"groupCount": 0});
}

chrome.commands.onCommand.addListener(storeTabs);

function storeTabs(command)
{
    if ("toggle-feature" == command)
    {
        chrome.storage.local.get("groupCount", function(group)
        {
            // current count of groups
            var groupCount = group.groupCount;

            var promptUser = prompt("Group name: ");

            if (promptUser != "" && groupCount != 0)
            {
                /* iterates through the names */
                for (var i = 0; i < groupCount; i++)
                {
                    chrome.storage.local.get(["groupName" + i], function(anotherGroup)
                    {
                        var groupName = anotherGroup["groupName" + i];
                        console.log("group: " + anotherGroup["groupName" + i]);

                        chrome.storage.local.get(null, function(items)
                        {
                            var allKeys = Object.keys(items);
                            console.log("storage: " + allKeys);
                        })
                        console.log("groupName: " + groupName);
                    })
                }
            }

            /* stores the number, name, and urls of the tabs, as well as the group name into an object for storage */
            else
            {
                var groupObject = {};

                /* stores all of the tab's information into an object and then puts object into storage */
                chrome.tabs.query({currentWindow: true}, function(tabs)
                {
                    /* gets each tab's name and url from an array of tabs and stores them into arrays */
                    var tabNamesArr = [];
                    var tabUrlsArr = [];
                    var tabCount = 0;

                    for (; tabCount < tabs.length; tabCount++)
                    {
                        tabNamesArr[tabCount] = tabs[tabCount].title;
                        console.log("title of tab: " + tabs[tabCount].title);
                        tabUrlsArr[tabCount] = tabs[tabCount].url;
                    }

                    var groupName = "groupName" + groupCount;
                    groupObject[groupName] = promptUser;

                    var tabNames = "tabNames" + groupCount;
                    groupObject[tabNames] = tabNamesArr;

                    var tabUrls = "tabUrls" + groupCount;
                    groupObject[tabUrls] = tabUrlsArr;

                    var tabCount2 = "tabCount" + groupCount;
                    groupObject[tabCount2] = tabCount;

                    // puts object into storage
                    chrome.storage.local.set(groupObject);

                    // set-up for next group so last group isn't overwritten
                    chrome.storage.local.set({"groupCount": (groupCount + 1)});
                })
            }
        })
    }
}

background.js console after calling command 3 times

group: undefined
background.js:68 storage: buttonCount,groupCount,groupName0,groupName1,tabCount0,tabCount1,tabNames0,tabNames1,tabUrls0,tabUrls1
background.js:63 group: undefined
background.js:68 storage: buttonCount,groupCount,groupName0,groupName1,groupName2,tabCount0,tabCount1,tabCount2,tabNames0,tabNames1,tabNames2,tabUrls0,tabUrls1,tabUrls2