[mikeash]

The function name often includes the name of the first argument just by virtue of it being spelled out. Current Swift function names are usually two parts, one part for the function itself, and one part that indicates the meaning of the first argument. For example, consider removeAtIndex, substringWithRange, or joinWithSeparator.

To me, it makes a lot more sense to just call these remove, substring, and join, and label the first argument to express what's removed, substringed, or joined with. This makes the first parameter consistent with subsequent parameters, and makes the actual function name purely about the function's, uh, function.

[memco]

In my brief experience with Swift the first argument convention struck me as a little weird. I ended up adding labels anyhow as it made more sense to me. Glad to see this being embraced.