Scala - mutable (var) method parameter reference

Question

EDIT: I keep getting upvotes here. Just for the record, I no longer think this is important. I haven\'t needed it since I posted it.

I would like to do following in

Answer 1

No, that's not allowed in Scala. Others have described some low-level workarounds (all good), but I'll add a higher-level one. For just this sort of string normalization purposes, I keep around a pimped extension to scala.String with methods like suffix, prefix, removeSuffix, and removePrefix. suffix and prefix append or prepend one string onto another, unless the suffix or prefix is already there. removeSuffix and removePrefix do the obvious, removing one string from the end or beginning of another, if it's present. Your use case would be written

val normalizedPath = destPath.addSuffix("/") 

If you do a bunch of data analysis or file operations, these methods are so handy that you won't believe that you ever did without them.