using mergeV/E

var newNodes = []
newNodes.push(new Map([[(t.id),1],
            [(t.label),'Person'],
            ['name','Tom'],
            ['address','101 Elm Street']]));
newNodes.push(new Map([[(t.id),2],
            [(t.label),'Person'],
            ['name','Sally'],
            ['address','55 Main Street']]));
newNodes.push(new Map([[(t.id),3],
            [(t.label),'Person'],
            ['name','Jane'],
            ['address','222 5th Avenue']]));

g.inject(newNodes).unfold().mergeV(limit(local,1)).  //match on ID only
    next().
    then(data => {
        console.log(data);
    }).catch(error => {
        console.log('ERROR', error);
    });