Emacs: how to jump to function definition in .el file?

Question

I tried to edit my init file. Is there any possible way to quickly jump into function definition of other .el file that has already loaded/required ?

I remember doin

Answer 1

As of emacs-25.1, there's a new generic function xref-find-definitions. The xref built-in package provides a generic framework for navigating definitions in code. Probably, it'd take some time for every mode to adjust custom functions for this framework, but, at the very least, emacs-lisp-mode already ported.