getify

In defense of blocks for local scopes (Part 2)

Some have leveled the criticism that "part 1" of this post is unnecessarily contriving a problem that doesn't really exist in "good code" -- if you really need to narrow a scope of some declarations in a function, then that function is too complex already and that bigger problem is what you need to fix.

Just to be extra clear: if a chunk of code is already reasonable to make a function, that's not the sort of code I'm talking about in either of these blog posts. If it's being called multiple times, or if it's completely independent and makes sense as its own logical chunk, make it a function. I'm talking about a different sort of code, a set of a few statements related to each other, that declare one or more variables, but which logically still belong inside another function. That's the context here.

OK, let's stop talking about this stuff abstractly.

A Real Example

gilbert

// m.prop is a great pattern, but Plain-old JavaScript Objects (POJO) are
// much more pleasant to work with.
// Here's an example of using POJOs with one- and two-way data binding.

// First, the helper methods
m.setValue = function (obj, prop) {
  return m.withAttr('value', function(value) { obj[prop] = value })
}

myronmarston

I highly suspect that the RSpec core team all use black backgrounds in their terminals because sometimes the colors aren’t so nice on my white terminal

I certainly use a black background. I'm not sure about the other RSpec core folks. Regardless, if there are some color changes we can make that would make output look good on a larger variety of backgrounds, we'll certainly consider that (do you have some suggested changes?). In the meantime, the colors are configurable, so you can change the colors to fit your preferences on your machine. First, create a file at

paulp

Hello scala, my old friend
I've come to take you home again
Because a feature slowly creeping
left me plagued with doubts and weeping
and the version that was tagged in the repo
just has to go
it lacks the signs of soundness

On sleepless nights I hacked alone
applying ant and other tools of stone