Diff context markers (or whatever they're actually called) are helpful when viewing diffs of large files. In fact, I realized it might be helpful to have such a line at the at the top of the Vim buffer at all times:
@@ -30,4 +30,16 @@ describe('memoize', function() {
To be clear, I'm not talking about viewing diffs in Vim; I'm talking about viewing JavaScript files and other source files, but having the first line of the buffer provide context for the rest of the buffer.
Does anyone know of a plugin which does this?