London Lambdas Hackday: Developer Practices

[Richard Warburton]

> Nevertheless, you can use two workarounds in this situation. 1/ As Brian
> said, insert a print call in the chaining, but you need the tee method and
> you cannot use this with a debugger. 2/ You can put part of the chaining in

You could use a debugger if you had used empty function and
breakpointed on that:

  list.filter(...)
      .tee(x -> {}) // breakpoint within this lambda
      .map(...)

It's still a hack though.  Furthermore it potentially alters the
evaluation pattern of the expression depending upon whether its
chaining a lazy or strict collection.

regards,

  Richard