Telegram Message group.members.filter - SHOW LABEL

[deibich (David)]

Take a look at the “Tutorial & Examples” section. Your scenario is described there.

@rlkoshak

To build a String containing all the names of Items that are OPEN there are two approaches: use map/reduce or use a val StringBuilder.

// StringBuilder
val StringBuilder sb = new StringBuilder
MyGroup.members.filter[ i | i.state == OPEN].forEach[i | sb.append(", " + i.name) ]

// Map/Reduce
val str = MyGroup.members.filter[ i | i.state == OPEN ].map[ name ].reduce[ s, name | s + ", " + name ]

The StringBuild approach works because we can declare it as a val but still can call methods on it to change it.