Hash rocket vs 1.9 Syntax

[chancancode]

Hi all,

Tiffany from LA Railsbridge mentioned that there were some confusion among the students about the inconsistent use of hash rocket (i.e. {:a => 123, :b => "hello"}) vs 1.9 syntax (i.e. {a: 123, b: "hello"}). I can probably send a PR to unify them, but I want to get some feedback on which of these two options do people prefer:

1. Use hash rocket everywhere, maybe add a note about the 1.9 syntax ( Pros: consistent, easy to understand )
2. Use 1.9 syntax whenever possible ( Pros: this seems to be where the Ruby community is heading, and tutorials and code they read elsewhere will probably be using this style )

Godfrey

[robotarmy]

This would be confusing for students - it's confusing for me why we have
it.

The confusion may be unavoidable - at some point all languages
have inconsistencies - this is one reason why coders adopt style
conventions for projects.

1.9 syntax is also only for symbols - so using them wherever possible would
still have teachers needing to explain this.

On Tue, Aug 21, 2012 at 11:39 AM, Godfrey Chan notifications@github.comwrote:

Hi all,

Tiffany from LA Railsbridge mentioned that there were some confusion among
the students about the inconsistent use of hash rocket (i.e. {:a => 123, :b
=> "hello"}) vs 1.9 syntax (i.e. {a: 123, b: "hello"}). I can probably send
a PR to unify them, but I want to get some feedback on which of these two
options do people prefer:

1. Use hash rocket everywhere, maybe add a note about the 1.9 syntax (
   Pros: consistent, easy to understand )
2. Use 1.9 syntax whenever possible ( Pros: this seems to be where the
   Ruby community is heading, and tutorials and code they read elsewhere will
   probably be using this style )

Godfrey

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[alexch]

Symbols vs Strings is one of my pet peeves about Ruby, and the new colon hash syntax just adds to the chaos. It's as essentially confusing language feature, and I think we do students no favors by trying to mask it. So I prefer Godfrey's option 2, with the caveat that an occasional {:a => 1} is not the end of the world.

[tjgrathwell]

I hunted down and eliminated the only hashrocket I could find in the main curriculum with this commit: 6144f07

That's not really true: root :to => 'topics#index' still contains a hash rocket, but the rails routing guide (http://guides.rubyonrails.org/routing.html) and many others on the internet still write it that way. So I left it alone.

If there's any other hash rocketing anyone feels like amending, go for it. But this issue is 📕

(the emoji is 'closed book'. it means closed)