Question

我有一个字符串：

'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

除非我解码，否则我无法理解它。但是，我已尝试安装base64 npm包和utf8包，但它抱怨_utf2.default.decode is not a function. (In \'_utf2.default.decode(bytes)\', \'_utf2.default.decode\' is undefined)。

https://github.com/mathiasbynens/base64 https://github.com/mathiasbynens/utf8.js#utf8decodebytestring

import base64 from 'base-64';
import utf8 from 'utf8';

  const bytes = base64.decode(validationData);
  const text = utf8.decode(bytes); // <----- fails here
  console.log("base64: ", text);

背景：尝试使用以下方法在应用内购买：https://github.com/chirag04/react-native-in-app-utils，但receiptData是base64编码

Answer 1

如果您正在尝试对其进行解码并将其渲染为图像组件，则可以这样做：

const base64 = 'data:image/png;base64, *put your string here*'

<Image source={{uri: base64}} />

Answer 2

我遇到了同样的问题。

I found this repository，看起来很旧，但也很有效。我没有收到标题（我不需要），但我确实收到了有效载荷/数据。

我做了以下事情：

npm install jwt-decode --save

然后，在我的应用中：

var jwtDecode = require('jwt-decode');
// Where necessary elsewhere in the code
let decoded = jwtDecode(token);
console.log('Decoded:',decoded);

React Native：如何解码base64编码的字符串？

2 个答案: