logger prints/output only first argument in v 3.2.0

Environment

• winston version?
  • winston@3.2.0
• node -v outputs:
  • v10.13.0
• Operating System? (macOS)

Problem

logger.info('First', 'Second') is printing only First in the console and in File. With 3.0, this is printing both arguments, First & Second. (Second in the new line)

What do you expect to happen instead?

Expecting output as First Second

[robertsLando]

I think this is such a breaking change…

The partial solution is:

const wrapper = ( original ) => {
    return (...args) => {
      for (let index = 0; index < args.length; index++) {
        if(args[index] instanceof Error){
          args[index] = args[index].stack
        }
      }
      original(args.join(" "))
    }
};

logger.error = wrapper(logger.error);
logger.warn = wrapper(logger.warn);
logger.info = wrapper(logger.info);
logger.verbose = wrapper(logger.verbose);
logger.debug = wrapper(logger.debug);
logger.silly = wrapper(logger.silly);

[oakfire]

You could log like logger.info(['First', 'Second']) if you need that kind of call. Generally winston isn’t really designed for that call style; for the leveled log methods, the first param is a string message, and all other params are treated as splats/metas.

That being said, I think winstonjs/logform#85 with the metadataArray might help achieve what you want. I can leave this issue open till that gets merged.

But util.format('First', 'Second') will output First Second, the same as console.log and winston@2. Why winston@3 with format splat break this behavior?