Posted By

narkisr on 03/17/09

Tagged

category
groovy

Versions (?)

Last Edited at 03/17/09 08:34am

Statistics

Viewed 816 times

Favorited by 0 user(s)

Related snippets

WithIndex Groovy category

/ Published in: Groovy

An example of utilizing a category in Groovy in order to create withIndexfunctionality on lists each methods (traversing the list and having the index on each step), @ http://markmail.org/message/pa2irg4mvydpxi7c

Expand | Embed | Plain Text

Copy this code and paste it in your HTML

class WithIndexCategory { 
    static List withIndex(List source) { 
           def idx = 0 source.collect { [index: idx++, value: it] } 
    } 
}
 
use(WithIndexCategory) { l = [ 3, 1, 4, 1, 5, 9 ]
 
l.withIndex().each { if(it.index % 2) println it.value } }