I know. I've often heard this, but for me that's a bit tricky b/c I'm worried that my current definition of "foo" is not what it is in my .clj file b/c I may h

I know. I've often heard this, but for me that's a bit tricky b/c I'm worried that my current definition of "foo" is not what it is in my .clj file b/c I may have monkey-patched it in the REPL and forgot I did that.