TypeError: Super expression must either be null or a function

jnordberg / gif.js

JavaScript GIF encoding library

http://jnordberg.github.io/gif.js/

MIT License

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TypeError: Super expression must either be null or a function #139

Open am1rb opened 2 years ago

am1rb commented 2 years ago

Hey everyone

I have a react app written in TS and used gif.js for generating some GIF images. It compiles and works well, but when I run the unit tests using the jest command, it raises this error:

TypeError: Super expression must either be null or a function

Any advice?