Check if all items are equal

[rtvb (Robert)]

You should have a look at the working with groups design pattern from @rlkoshak

Design Pattern: Working with Groups in Rules

Edit: Updates for OH 4, inclusion of JS Scripting and Blockly examples, removed the doors example as it’s superfluous. Please see https://community.openhab.org/t/design-pattern-what-is-a-design-pattern-and-how-do-i-use-them/40319 for how to read and use DPs. Problem Statement One powerful way to consolidate code in rules is to use array/list manipulation operations on the members of a Group. For example, filter down to just those members that are ON, get a list of the labels of those Items tha…