• list.each { println it}
  • Iterate over each element of a collection.
• list.collect { it * it }
  • Collect a set of values for a new list
• list.findAll { it > 50000 }
  • Select a subset of a list that passes a certain criteria.
• list.find { it == 50000 }
  • Return the first element that passes a certain criteria.
• list.every { (it % 2) == 0 }
  • Return true if every member of a list passes a criteria
• list.any { (it % 2) == 0 }
  • Return true if any member of a list passes a criteria