raw_data = fs:read('examples/assets/seaCreatures.json') sea_creatures = json:parse(raw_data) data = { creatures = [] total_clams = 0 dolphin_clams = 0 } for creature in sea_creatures { data:creatures += creature:name data:total_clams += creature:clams if creature:type == 'dolphin' { data:dolphin_clams += creature:clams } } data