Hello :) My name is Mateusz Magier and I am writing master thesis about Front-End Code Playground tools (tools for creating and testing Front-End code, operating via a web browser - e.g. CodePen, JSFiddle). I would really appreciate your taking the time to complete the following survey :) (intended for people involved in front-end). This survey is completely anonymous, its results are intended only for scientific purposes.
https://goo.gl/forms/D6BQTidEvNdYj7Xb2