The George Programming Language

Type: list

Infinitely growable collection of values.

obj x = [1, 2, 3];

bark(x);

Operations

islist(value)

Returns true if value is a list.

obj x = [1, 2, 3];

bark(islist(x)); # true!

push(list, value)

Adds the value to list.

obj x = [1, 2, 3];
push(x, 4);

bark(x); # output: [1, 2, 3, 4]

append(list_a, list_b)

Combine a list with another list by copying list_b’s elements into list_a.

obj x = [1, 2, 3];
obj y = [4, 5, 6];
append(x, y);

bark(x); # output: [1, 2, 3, 4, 5, 6]

remove(list, index)

Removes the value at index inside list (optionally returns the removed value if necessary).

obj x = [1, 2, 3];
remove(x, 0);

bark(x); # output: [2, 3]

retrieve(list, index)

Returns the value at index inside list.

obj x = [1, 2, 3];
obj value_in_list = retrieve(x, 0);

bark(value_in_list); # output: 1

contains(list, object)

Returns true if list contains the specified object. object is treated as the element to search for.

obj x = [1, 2, 3, 4];

bark(contains(x, 1)); # true!

reverse(list)

Reverses list in place (no new copy).

obj x = [1, 2, 3, 4];
reverse(x);

bark(x); # output: [4, 3, 2, 1]

clear(list)

Clears list and returns a new copy.

obj x = [1, 2, 3, 4];
obj x = clear(x);

bark(x); # output: []

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