GDScript Language

Check type

if typeof(data.selected_card.one_time_effect) == TYPE_OBJECT:
	pass

Iterate over array

# no index
for item in array:
	pass

# with index
for i in range(array.size()):
	var item = array[i]

Iterate over dictionary

# with keys
for key in dict:
	var value = dict[key]

# or
for key in dict.keys():
	var value = dict[key]

# no keys, only values
for value in dict.values():
	pass

Multiline string

var stats = """
Move: {move}
Energy: {energy}
Skills: {skills}
Equipment: {equipment}
"""