I don't understand the reject syntax {|a|

Rails
1

I have the following line of code, anyone could decypher this syntax ?

@teams.reject {|a| a.sport.id != @sport.id }.sort { |a,b| b.points <=>
a.points } [0…2]

2

On Jun 4, 10:31 pm, Victor D. [email protected]
wrote:

I have the following line of code, anyone could decypher this syntax ?

@teams.reject {|a| a.sport.id != @sport.id }.sort { |a,b| b.points <=>
a.points } [0…2]

take @teams, remove all teams where sport.id is not @sport.id, then
sort them by points (descending) and return the top 3.
Or in other words, return the top 3 teams for the sport designated by
@sport

Fred

3

On Wed, Jun 4, 2008 at 5:57 PM, Frederick C.
[email protected]
wrote:

take @teams, remove all teams where sport.id is not @sport.id, then
sort them by points (descending) and return the top 3.
Or in other words, return the top 3 teams for the sport designated by
@sport

Yes, and I feel the duty to suggest that the equivalent

 @teams.select {|a| a.sport.id == @sport.id }.sort { |a,b| b.points

<=>
a.points } [0…2]

Is (quite a bit?) clearer.

Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/