为什么 chrome.storage.local.get 返回 undefined 的值? [英] Why does chrome.storage.local.get return undefined for the value?

问题描述

我正在开发 Google 扩展程序并使用 Google 存储.

I am working on a Google Extension and using Google Storage.

以下是我用于保存和访问已保存数据的代码.我检查了控制台，数据保存正确.但是，当我使用 chrome.storage.local.get 访问此数据时，控制台返回未定义的值，而不是保存的值.

Below is my code for saving and accessing the saved data. I checked the console and the data is saving correctly. However, when I access this data using chrome.storage.local.get console returns undefined for the value and not the value saved.

保存代码:save.js for popup.html

Code for Saving: save.js for popup.html

function save() {
    # the id is for a textarea in another html page
    var text = document.getElementById("text").value;

    chrome.storage.sync.set({"txt": text}, function(){
      
       # console states the correct value
       console.log('Value is set to ' + text);
     });

   # this is the page I want to retrieve the saved data in 
   window.location.replace("anotherHTMLpage.html");

}

访问代码:retrieve.js for anotherHTMLpage.html

Code for Accessing: retrieve.js for anotherHTMLpage.html

function retrieve() {
    chrome.storage.sync.get(["txt"], function(data) {
     
      # console says "value currently is undefined"
      console.log('Value currently is ' + data.key);

   });
  }

提前感谢您的帮助！

推荐答案

Chrome 将数据保存在您设置的键下.在您的示例中，您将其保存为 txt，因此它将位于 data.txt 而不是 data.key.

Chrome saves the data under the key you set it as. In your example, you saved it as txt, so it will be under data.txt not data.key.

查看文档了解更多详情https://developer.chrome.com/docs/extensions/reference/storage/#usage

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