dust/examples/sea_creatures.ds

raw_data = (read 'examples/assets/seaCreatures.json')
sea_creatures = (from_json 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