I disagree with telling people to Google before needing help with an issue only because not everyone knows where to properly look for help or what exactly the kind of help they’ll need is. Many times, Google searches will take people to stack overflow and other forum posts that may not necessarily offer what they’re looking for or offer the wrong information. Here’s my suggestions on two good resources for possibly common questions.
Reactjs: https://reactjs.org/
Electron issue tracker (if working on Desktop client and running into unusual behavior): https://github.com/electron/electron/issues