Groovy, how to iterate a list with an index

Question

With all the shorthand ways of doing things in Groovy, there's got to be an easier way to iterate a list while having access to an iteration index.

for(i in 0 .. list.size()-1) {    println list.get(i) } 

Is there no implicit index in a basic for loop?

for( item in list){     println item            println index } 

Answer 1

You can use eachWithIndex:

list.eachWithIndex { item, index ->     println item     println index } 

With Groovy 2.4 and newer, you can also use the indexed() method. This can be handy to access the index with methods like collect:

def result = list.indexed().collect { index, item ->     "$index: $item" } println result