utf8.decode() is not a function error

[ghost]

Hi,

We've followed your instructions in the repo but cannot call the decode method. Encode works fine. Any insights as to why this might happen?

Thank you

[mathiasbynens]

What have you tried exactly? What happens exactly?

[ghost]

We imported the package:

var utf8 = require('utf8');

then invoked the decode method on a string bytes from a base64 string (or any input) with utf8.decode(input) i get the error.

utf8.encode(input) works fine.

[mathiasbynens]

Please provide a reduced test case so I can reproduce the error.

[ghost]

Unhandled JS Exception: utf8.decode is not a function. (In 'utf8.decode(bytes)', 'utf8.decode' is undefined)

[mathiasbynens]

It’s hard to figure out what you’re doing exactly, unless you tell me.

It works fine for me:

$ npm i utf8

$ node -v
v6.2.1

$ node -p 'require("utf8").decode("\xE2\x99\xA5")'
♥

Since there appears to be no issue with utf8.js, I am closing this issue.

Provide a reduced test case and I’ll take a look.

[txm]

React Native problem? I'm getting the same error as this chap.

https://stackoverflow.com/questions/41252188/react-native-how-to-decode-base64-encoded-string

[mcmar]

@mathiasbynens the simplified test case is

react-native init DemoProj
cd DemoProj
yarn add utf8

then open index.ios.js and add the lines

import utf8 from 'utf8';
console.log(utf8);

then start the app using

react-native run-ios

then open the developer panel (⌘+D) and select "Debug JS Remotely"
That should open a panel in your web browser. Then press ⌘-⌥-i and select console to see the result of the console.log statement. You should see that encode is defined, but decode and version are not.

[mcmar]

Looks like Facebook has a utility that takes precedence over this one when you do an import or require.
https://github.com/facebook/react-native/blob/9ee815f6b52e0c2417c04e5a05e1e31df26daed2/Libraries/Utilities/utf8.js
#rude

[mcmar]

@davidaurelio Got any suggestions for what to do about this?

[mcmar]

@mathiasbynens Maybe consider also publishing this under react-native-utf8 so us plebs can have access to your awesome library? Then leave a comment in the readme for react-native folks to know what to do. Can you even publish the same library under two namespaces? Is that allowed?

[davidaurelio]

@mcmar can you send a PR for React Native to rename the internal module to something different?

[arribbar]

well, I solved this error not using this project but the old method:

decodeURIComponent(escape(s))