You can use arrays in Spice for any primitive or custom struct data type.

To initialize an array e.g. of type string, you can write:

string[5] myStringArray = { "First item", "Second Item", "Third item" };

The 5 in the brackets is the size of the array. The initial values can be provided in curly braces after the assign operator and must be of the same data type.
As you can see, there are less values (3) than the array size is (5). The rest of the values are set to the default data type value. The default data type values are:

Type Default value
int 0
double 0.0
string ""
bool false
struct Default values for all fields

To access an array item, you can use the index. The indexes are >= 0 per definition:

string item3Value = myStringArray[3];

More complex expessions for initial array values and item indexing are possible. Here's an example:

// Initialize array
dyn condition = 1 != 2;
bool[12] myBoolArray = { condition ? true : false, false, true };

// Access item 0
int i = 2;
bool itemValue = myBoolArray[i -= 2];

printf("Value: %u", itemValue);