@timigod.eth
I use JetBrains IDEs, it has a refactoring feature that lets you change everything across the entire codebase.
See for WebStorm (JS et al) & GoLand (Go). https://www.jetbrains.com/help/webstorm/refactoring-source-code.html
https://www.jetbrains.com/help/go/refactoring-source-code.html