Using our integrations, all code intelligence features are available everywhere you read code! This includes in browsers and GitHub pull requests.
Hover tooltips allow you to quickly glance at the type signature and accompanying documentation of a symbol definition without having to context switch to another source file (which may or may not be available while browsing code).
When you select 'Go to definition' from the hover tooltip, you will be navigated directly to the definition of the symbol.
When you select 'Find references' from the hover tooltip, a panel will be shown at the bottom of the page that lists all of the references found for both precise (LSIF or language server) and basic results (from search heuristics). This panel will separate references by repository, and you can optionally group them by file.
We use Ctags to index the symbols of a repository on-demand. These symbols are used to implement symbol search, which will match declarations instead of plain-text.
We use Ctags to index the symbols of a repository on-demand. These symbols are also used for the symbol sidebar, which categorizes declarations by type (variable, function, interface, etc). Clicking on a symbol in the sidebar jumps you to the line where it is defined.