For with a step in Groovy

In Groovy, the for loop is used to iterate over a range of values or elements of a collection. The step keyword can be used in a for loop to specify the increment value between each iteration.

Here's an example of a for loop with a step keyword:

for (i in 0..10 step 2) {
    println(i)
}

In this example, the loop will start at 0 and increment by 2 until it reaches 10. The output will be:

0
2
4
6
8
10

The step keyword can also be used with collections, like this:

def myArray = [1, 2, 3, 4, 5]
for (num in myArray.step(2)) {
    println(num)
}

In this example, the step(2) method is called on the myArray collection to specify that the loop should iterate over every second element. The output will be:

1
3
5

So, the step keyword is used to control the increment value of a for loop in Groovy.